Pete Alonso, infielders put in work

Observations from Thursday’s Mets workout:

Extra work

Mets minor league infield instructor Tim Teufel worked with Pete Alonso, Mark Vientos and Brett Baty on early infield drills. Infield coach Gary DiSarcina tutored Jonathan Villar at third base on the main field.

Peterson Pen

David Peterson, who is competing for the fifth spot in the rotation, was among the pitchers to throw a side session.

Caught my eye

Tony DeFrancesco, who served last season as the team’s first-base coach, has been in camp in his new capacity working in scouting and player development. DeFrancesco previously served as the organization’s Triple-A manager.

Friday’s schedule

Full-squad workouts continue as the Mets prepare for Monday’s Grapefruit League opener against the Marlins.