If the lofty expectations were weighing on Anthony Rizzo, he sure didn't show it in his Cubs debut.

Rizzo had two hits and drove in the go-ahead run in his first game with Chicago, which rallied for a 5-3 victory over the sliding New York Mets on Tuesday night.

''That's how I play the game, really relaxed,'' Rizzo said. ''Everybody always tells me it looks like I'm not even trying. I like hearing that a lot.''

Rizzo doubled home Steve Clevenger with two out in the fourth, making it 4-3 and sending the Mets to their fourth straight loss - matching a season high.

''He didn't act like much of a kid tonight, that's for sure,'' Cubs manager Dale Sveum said. ''That was pretty impressive.''

Rizzo was called up earlier in the day for his highly anticipated Cubs debut. He reached on an infield single in the first when his smash eluded shortstop Ruben Tejada and bounced to first in the third, advancing two runners and sparking Chicago's three-run rally.

Add in a flawless performance in the field and it was pretty close to an ideal opening act.

''Those are the little things that go unnoticed in baseball that you've got to do to win day in, day out,'' Rizzo said. ''It's just playing baseball.''

The touted Rizzo hit .342 with 23 homers and 62 RBIs at Triple-A Iowa. He made his big league debut last season for San Diego, hitting .141 in 49 games before being traded to Chicago over the winter.

Dillon Gee (5-6) struck out six in five innings for the Mets, but gave up four runs and nine hits. The right-hander is 1-3 with a 3.69 ERA in his last six starts.

''It just seemed like everything they hit was getting through somewhere,'' Gee said. ''I wasn't able to settle down and find that rhythm.''

New York's David Wright went 0 for 3 with a walk and a sacrifice fly, ending his hitting streak at 15 games. It was the longest active streak in the majors.