Cactus League play is finally here, with the San Diego Padres opening the exhibition season by playing the Seattle Mariners, with whom they cohabitate the Peoria Sports Complex in Peoria, Arizona.

The wins and losses don’t mean anything. For a handful of the dozens of players who will play in these games, neither does their performance. Their spot on the Opening Day roster is set. But there are others, whether they are on the 40-man roster or a spring training invitee, who are depending on these games to prove they belong among the 26 who will be in the Petco Park clubhouse come March 26 vs. the Detroit Tigers.

With that in mind, here are three position battles to keep an eye on this spring. (Players listed in order of strongest candidacy.)

No. 4 and No. 5 Starting Pitcher

After feeling a good bit of unease when pitchers and catchers reported last week, Friars fans have to be feeling a bit more comfortable now that president of baseball operations A.J. Preller has added three more arms, all with plenty MLB experience, to the field battling for the last two spots in the five-man starting rotation. The top three is set with right-handers Nick Pivetta, Michael King and Joe Musgrove.

RHP Walker Buehler: Relegated to a minor-league deal after a poor 2025 as a whole, the former Los Angeles Dodgers star will look to build on his final seven games (four with the Boston Red Sox, three with the Philadelphia Phillies) in which he posted a 2.53 ERA.

RHP German Marquez: In his first season following Tommy John surgery, Marquez had a 5.47 FIP in 26 starts with the Colorado Rockies in 2025. Like a few others on this list, Marquez is a low-cost bounce-back option (one year, $1.75 million) who could become a stalwart at the back of the rotation.

RHP Griffin Canning: Coming off a torn left Achilles, Canning (one year, $2.5 million) will begin the season on the injured list, but could be ready to join the rotation by the end of April at the earliest. The good news is Canning had the best 2025 of anyone in this this group before getting injured in late June, putting up a 4.04 FIP in 16 starts.

RHP Randy Vasquez: The person whose stock suffered the most with the above additions, Vasquez went from securely being the No. 4 starter to now wondering where he fits in. Perhaps that will bring out the competitor in Vasquez and unlock a little more in his performance.

LHP JP Sears: We enter the left-handed portion of this list. Any of these southpaws could have an advantage by virtue of simply being a lefty. That begins with Sears, who put up a 4.92 FIP in parts of four seasons (95 starts, one relief appearance) with the A’s. He struggled in five starts after coming over at the trade deadline and could be a long reliever if he doesn’t grab a rotation spot.

LHP Kyle Hart: Often a forgotten figure in this discussion, Hart returned to the majors for the first time since 2020 to make 20 appearances (six starts) with the Padres in 2025. He figures to be an option only if injuries take their toll on the rotation.

RHP Triston McKenzie: After emerging as breakout star in 2022 in Cleveland, McKenzie has had issues repeating that performance. Most of that has to do with choosing rehab over Tommy John surgery in 2023, a decision that has led to him pitching in just 24 games over the last three seasons. Starting at Triple-A El Paso could be a better situation for McKenzie, with an early call-up possible.

LHP Marco Gonzales: Signed to a minor-league contract with a $1.2 million price tag in the majors, Gonzales had flexor tendon surgery late in 2024 and missed all of 2025. That scenario also makes him better-suited to start at Triple-A El Paso and come up when a starter is needed.

First Base

This position also changed dramatically in the last week due to a couple more free agents joining the mix. Jake Cronenworth will see time at first, though he is currently slated as the starting second baseman.

Nick Castellanos: Following his well-publicized release from the Philadelphia Phillies last week, Castellanos became the front-runner to start at first base, a position he hasn’t played in the majors. The former third baseman who has been playing right field almost exclusively since 2018 could bring some much-needed power to the lineup if he shows he can play first. Otherwise, he will be one of the primary designated hitters.

Gavin Sheets: Entering spring training, Sheets was the favorite to start at first. This comes after just 13 games at the position and 64 games in left in 2025. Sheets’ bat is his primary asset, having hit 19 homers and driven in 71 in 145 games last year while also seeing action in 64 games as the DH. With extra outfield depth acquired, Sheets will either be the first baseman or DH in 2026.

Ty France: A 34th-round pick of the Padres in 2015, France returns to the organization on a minor-league deal after being traded to the Seattle Mariners in 2020. He was the AL Gold Glove winner at first base last season, in which he was traded from the Minnesota Twins to the Toronto Blue Jays at the deadline.

Miguel Andjuar: The 2018 AL Rookie of the Year runner-up to Shohei Ohtani has lost much of the power that he showed that year (27 homers) following a rash of injuries. But he can still hit. Andujar had a slash line of .318/.352/.470 between the A’s and Cincinnati Reds in 2025, with 10 homers and 44 RBIs. His 341 plate appearances were his most since his rookie year.

Sung Mun Song: Signed to a four-year, $15 million contract to come over from the Korea Baseball Organization, Song is a long shot to start at first, but will see time at the position as he floats around the diamond as a super-utility option.

Last Bench Spot

This is where Preller and manager Craig Stammen face their biggest decision as to roster construction. While going with three catchers had been floated, that idea is no longer in play with the additions of Castellanos and others. With Luis Campusano set as the back to Freddy Fermin at catcher, there are three other bench spots to fill. For argument’s sake, we will pencil Castellanos and Sheets in as the starters at first base and DH in some fashion.

Song and Andujar are givens at the moment. Song will be the backup at second and third base and will try the outfield this spring, while Andjuar has the ability to play left field, third base and first base. If Song is tried in center and shows he can play the position, that could make for other interesting decisions.

That leaves one bench vacancy.

Bryce Johnson: His spot on the 26-man roster is in jeopardy if Song can play center. Otherwise, he is the only other pure outfielder on the 40-man roster now that Tirso Ornelas has been jettisoned. He was really good offensively in 2025, with a .342/.383/.434 slash line to pull his career mark up to .240/.298/.305.

Mason McCoy: The only other player on the 40-man with shortstop experience besides McCoy is Cronenworth. Do the Friars choose to have Cronenworth as the backup to Xander Bogaerts or do they prefer McCoy? The benefits of having another shortstop on the 26-man roster may overshadow other shortcomings on the roster.

Will Wagner: The son of Hall of Fame closer Billy Wagner hasn’t established himself in the majors, though he’s produced a .294/.394/.439 slash line in five minor-league seasons. In 55 games between the Toronto Blue Jays and Padres after coming over at the trade deadline, Wagner’s slash line was .225/.324/.279. He has played second, third and first in the majors. If he expands to center field, that gives him a better shot.

Ty France: Already with limited defenders in Castellanos and Sheets, do the Friars carry a third first baseman? As mentioned, France has a minor-league deal, but likely with an out by the end of camp to pursue a major-league job.

Samad Taylor: A true wild card, but perhaps the only other non-roster position player to have a legit chance to make the Opening Day roster. Taylor brings the positional versatility needed from the last bench spot as he can play second, third and short on the infield and all three outfield spots. In addition to defense, he brings speed to the lineup, but has a slash line of .205/.272/.260 in 38 MLB games over the last three seasons.

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