Clemson linebacker Isaiah Simmons, a possibility for Giants with fourth pick, officially declares for NFL DraftSimmons was nation's top linebacker in 20191/18/2020, 11:54 PMJan 13, 2020; New Orleans, Louisiana, USA; Clemson Tigers linebacker Isaiah Simmons (11) reacts as he leaves the field after losing the College Football Playoff national championship game against the LSU Tigers at Mercedes-Benz Superdome. Mandatory Credit: Mark J. Rebilas-USA TODAY Sports / Mark J. Rebilas