Eintracht Frankfurt defender Timothy Chandler has undergone successful surgery to repair torn cartilage in his right knee, the club have confirmed.

The 27-year-old landed awkwardly off the ball in the 36th minute of Frankfurt's thrilling 2-2 draw with Borussia Dortmund on Matchday 9, before being helped from the field of play by two members of Eintracht's medical team.

The USA international is expected to be out of action for up to two months.

Chandler's absence will come as a big blow to Frankfurt, the former Nuremberg man having started all nine of the Eagles' Bundesliga assignments so far this season.

Click here for the Frankfurt vs. Dortmund Match Centrephotography exhibit

CHICAGO -- The Cubs will celebrate Jackie Robinson Day on Monday at Wrigley Field.

The team is partnering with Ebony Magazine, which is making available vintage photographs of Robinson and other African American baseball legends. The photos will be on display at Wrigley Field in the Budweiser Bleacher Concourse during Monday night's game. The photos are from the Ebony Collections, the most sizable photo collection of the African American experience ever archived.

Jackie Robinson Day is recognized throughout Major League Baseball on April 15, the day Robinson broke the color barrier with the Brooklyn Dodgers in 1947. The Cubs were on the road playing the Yankees at that time.

Joshua Mhoon, 10, of the Oak Park Mustangs, will throw out the first pitch Monday. Mhoon plays pitcher and first base