After signing Taijuan Walker, here's how Mets' rotation is shaping up for 2021 and beyondThe future of Noah Syndergaard is up in the air, while 2023 could be the start of a new era in the Mets' rotation2/19/2021, 8:30 PMDanny AbrianoManager of Editorial ProductionJacob deGrom, Taijuan Walker, and Noah Syndergaard / SNY treated imageSep 24, 2019; New York City, NY, USA; New York Mets starting pitcher Noah Syndergaard (34) pitches against the Miami Marlins during the first inning at Citi Field. / Brad Penner-USA TODAY Sports