By Chris Rosvoglou During the 2021 MLB Draft, the New York Mets selected Vanderbilt pitcher Rocker Kumar. After reviewing his medical information, the team decided not to make him an offer. Fast forward a little less than a year later, and ESPN’s Jeff Passan has an update on Rocker’s future in baseball. Rocker has signed with the Tri-City Valleycats of the Frontier League. He’ll pitch with them before the MLB Draft, where he’s eligible to be selected again. This move makes a lot of sense considering Rocker decided to forgo his collegiate eligibility and pursue professional options after his fa…