St. Louis Cardinals first baseman Albert Pujols grabs his left wrist after being injured on a play at first base during the sixth inning of an interleague baseball game against the Kansas City Royals Sunday, June 19, 2011, in St. Louis. Pujols left the game (AP Photo/Jeff Roberson) (Jeff Roberson / AP)

Updated at 2:46 p.m.

St. Louis Cardinals first baseman Albert Pujols is expected to be out 4-to-6 weeks with a small fracture in his left wrist.

The team confirmed the news, first reported by Fox, Monday afternoon. Pujols jammed his wrist and shoulder against Wilson Betemit on a play at first base in the sixth inning of the Cardinals' 5-4 win over the Kansas City Royals on Sunday in St. Louis.

An MRI and CT scan revealed that Pujols has a non-displaced fracture of his left radius, the team said. His forearm was placed in a splint; his left shoulder was sore, but no structural damage was found.

“All I can tell you right now is I am pretty sore,” Pujols said Sunday night. “Am I worried at all? Of course, but I have faith in the Lord and hopefully everything comes negative tomorrow. When I come out of the game, believe me something is really wrong…Hopefully cross our fingers that I'll be all right.”

Pujols, who was 3-for-3 and hit his 17th home run in the game, has previously had only two stints on the disabled list (June 2006, left oblique strain; June 2008, left calf strain).

The Cardinals say they will announce a roster move before their series against the Philadelphia Phillies begins tomorrow night.