When a string of injuries to various body parts began during the middle of last season, Jacob deGrom was put on the shelf as the best pitcher in baseball. Now that he has returned, deGrom is making it clear that title still belongs to him.

DeGrom threw six scoreless innings, in which he faced 20 hitters and retired 18, 10 by strikeout, in the Mets’ 1-0 win over the Phillies in front of a sellout crowd of 43,857, the biggest of the season and the ninth largest regular-season crowd in Citi Field history.

Phillies batters swung at 44 of deGrom’s 76 pitches. They connected for two singles — one in the first inning by Rhys Hoskins and one in the sixth by Bryson Stott — and missed 19 times.

The Mets scored in the first inning thanks to Starling Marte’s legs. Marte singled, stole second and took third base when the throw escaped into center field. Pete Alonso came through again with a single off Aaron Nola for his league-leading 97th RBI.

“The value of one run in the big leagues is tremendous — especially  when Jake’s on the mound,” said Alonso, whose average is up to .281. “You know you have a pretty good shot to win the ballgame.”

Chris Bassitt was worthy of a gold star for his effectiveness and yet another for longevity Monday night. 

The Mets had utilized their bullpen plenty in playing five games over  four days against the Braves, and extra rest for that group was a commodity, even a day after many of manager Buck Showalter’s top options remained idle. 

Bassitt emerged with eight strong innings that led a 5-1 victory over the Reds at Citi Field. The Mets won for the sixth time in seven games and widened their NL East lead on the Braves to seven games. 

Already at 95 pitches, Bassitt was entrusted the eighth and struck out potential tying run Aristides Aquino after allowing a two-out single to Jake Fraley. Bassitt threw a season-high 114 pitches in allowing one unearned run on eight hits with eight strikeouts and one walk. 

“I think genuinely that is why they brought me over here was for that  reason: I am not afraid to go over 100 pitches,” Bassitt said. “I am confident going past 100 and I don’t think my stuff declines.” 

After a miserable few days in St. Louis, the Yankees got back to winning, snapping their season-high five-game losing streak with a 9-4 win over the Mariners at T-Mobile Park. 

But it came with a cost, as Matt Carpenter suffered a fractured left foot in the first inning and could be lost for the season. 

Against Seattle, they had enough to overcome Carpenter’s absence, as Josh Donaldson had four hits — including a two-run single in the first and a solo homer in the third — and Aaron Judge crushed his 44th homer of the season. 

Jameson Taillon continued his pattern of being good every other start, as he gave up three runs in seven innings. 

It came after the team was swept by the Cardinals, with their new top-of-the-rotation pitcher, Frankie Montas, getting hit hard on Sunday and their lead in the AL East had dropped into single digits for the first time since June 15.