Matthew de la Rosa

Welcome to the channel—this is where serious ballplayers come to develop as infielders.

My name is Matthew de la Rosa and I'm former professional baseball player focused on developing serious infielders the right way.

This channel is built around middle infield & 3B training—footwork, glove work, game-speed reps, and throwing efficiency that actually translates into games. Most players don’t get enough quality reps in team practices, so everything here is designed to build consistency, confidence, and real performance.

I work with athletes from youth to college and pro levels, using small group, high-rep training to develop game-ready skills.

While my focus is infield development, I also cover arm care and throwing work, and offer 1-on-1 pitching instruction when needed.

If you’re serious about becoming a better infielder, you’re in the right place.

Also, if you live in the NJ area and want to train with me, you can email mdelarosa@njhealthyheat.com