BOSTON — During recent homestands at Fenway Park, an interesting scene has played out during batting practice. Hitters Caleb Durbin and Carlos Narváez, after taking their rounds on the field, have paid frequent visits to the dirt area behind home plate to talk shop with Lorenzo Garmendia, a private hitting instructor who works with both players at Gradum Baseball, which has a facility in Waltham.
Red Sox hitters are working with a private instructor during batting practice; is it a ‘big deal?’
