Tidwell will begin the season with High-A Brooklyn, Tim Healey of Newsday reports.
The 21-year-old righty made quick work of the lower levels, logging a 1.93 ERA and 1.18 WHIP between rookie and Single-A ball. Tidwell has been lauded as one of the top pitching prospects in the Mets organization, so he may be in line for another promotion during the season.