By Daniel Chavkin The 22-year-old is re-entering the MLB draft this summer. View the original article to see embedded media. The Tri-City ValleyCats announced they are signing pitcher Kumar Rocker for the upcoming season. Tri-City used to be the Astros’ short season single-A team, but became an independent baseball team just last year as a member of the Frontier League. They are located in Troy, N.Y., right outside of Albany. Rocker spent three years as a standout pitcher for Vanderbilt, accumulating a 2.89 ERA in 42 games. As a freshman in 2019, he was named the College World Series Most Valu…