Wells homered twice and the Blue Jays ended the New York Mets' franchise record nine-game road winning streak with a 7-4 victory Saturday.
Toronto's center fielder went 2-for-4, raising his average to .321. He has 20 home runs and 62 RBI in 71 games.
Fans chanted "MVP! MVP!" after his second homer, which gave Toronto a 7-3 lead.
"They are cool," Wells said of the chants. "I appreciate what the fans are saying, but let's worry about winning this division first."
Wells just tries to hit the ball in the air.
"I don't feel like I'm a home run hitter," said Wells, who has at least 20 in five consecutive seasons. "You are just thankful for everyone you get."
Staked to a 6-0 lead in the second, Toronto ace Roy Halladay (9-2) allowed four runs and 10 hits, while striking out four and walking none in 7 1/3 innings.
The 2003 AL Cy Young Award winner has won eight of his last nine decisions.
"Going out and scoring six runs early is huge," Halladay said.
The Mets loaded the bases in the eighth, but reliever Justin Speier got Jose Valentin to pop out and Xavier Nady to strike out swinging to end the threat. B.J. Ryan pitched the ninth for his 21st save in 22 chances.
Jose Reyes tripled and went 4-for-5 for the Mets, who fell to 24-13 on the road. He has a 12-game hitting streak and is 28-for-52 (.538).
"I feel so good. I'm seeing the ball so good. Hopefully, I'm going to keep it that way," Reyes said.
Hernandez (4-7) was forced to leave his start early in the second inning after the Mets were charged with two trips to the mound.
Pitching coach Rick Peterson went out to the mound in the inning and manager Willie Randolph made a trip after Hernandez almost ignited a bench clearing brawl by throwing a pitch high and tight to Troy Glaus -- after Wells hit his three-run homer a pitch before.
Glaus took a step toward the mound and his teammates were on the top step of the dugout as Hernandez waved his finger as if to say he didn't do it on purpose.
Randolph went out to the mound to calm Hernandez. After the umpires huddled, Hernandez was forced to leave.
"I wanted to stay in the game really bad," Hernandez said.
Randolph said the umpires should have used discretion on the play.
"I was just trying to keep him from getting into a confrontation," Randolph said. "I know him real well. He's very volatile, very emotional and I was trying to get him away from the situation. He has a very hot temper. They all agreed with what I did but they stuck by the rule. What are you going to do. I was more concerned with making sure there wasn't a brawl."
Hernandez allowed six runs and four hits in just 1 2/3 innings.
After David Wright hit an RBI triple past a diving Wells in center field in the fourth, Valentin hit an RBI grounder.
- Mets setup man Duaner Sanchez has a pinched nerve in his neck and is day-to-day, the team announced Saturday. Sanchez, a key part of New York's stellar bullpen, left after throwing just two pitches in the eighth inning of Friday's 6-1 victory over Toronto. The right-hander returned to New York on Saturday so he could be evaluated by team doctors. An MRI on his right shoulder was negative. He's expected to return to Toronto on Sunday.
- Mets C Paul Lo Duca left the game in the third because of a bruised left thumb. After Lo Duca grounded out to end the top of the third, Castro replaced him to start the bottom half. The injury has been nagging Lo Duca. He's listed as day-to-day.
- After striking out in the eighth, Toronto's Alex Rios broke the bat over his leg.