Mets takeaways from Thursday's win, including Pete Alonso's grand slam and lots of prospect actionDavid Peterson was strong in his spring training debut and Brandon Nimmo smacked a solo homer3/4/2021, 9:40 PMDanny AbrianoManager of Editorial ProductionMar 4, 2021; Port St. Lucie, Florida, USA; New York Mets first baseman Pete Alonso (20) is congratulated by Mallex Smith (21) and Jose Peraza (18) after hitting a grand slam home run against the Washington Nationals in the fifth inning of a spring training game at Clover Park. / Jim Rassol-USA TODAY Sports