Jon Singleton has transformed his physique over the offseason, arriving at spring training with a noticeably fitter frame. In the Astros' latest Grapefruit League game against the Cardinals, he showcased his enhanced agility with impressive defensive plays at first base, which his manager Joe Espada acknowledged as a testament to Singleton's dedication to conditioning.

Singleton's competition for a roster spot has intensified with the signing of Christian Walker, leaving him aiming for a bench role. Despite having been Houston's primary first baseman last season, his defensive struggles—culminating in a -8 defensive runs saved—mean he must prove his worth this spring. Singleton’s offensive output, characterized by a 103 OPS+ against right-handed pitching, shows promise as he attempts to solidify his place in the lineup.