Bayern Munich playmaker Xherdan Shaqiri will miss this week's UEFA Champions League clash with Arsenal after suffering a thigh injury in Saturday's win over Freiburg .

The Switzerland international scored twice in the 4-0 victory but limped out of the action just after the hour mark and Bayern confirmed after the match he would not be fit for either Wednesday's last-16 first-leg trip to Arsenal or next weekend's league match against Hannover.

The reigning European champions said on their official website: "Xherdan Shaqiri scored his first Bundesliga brace in the 4-0 victory over Freiburg, but there was a bitter aftertaste to the afternoon for the Swiss schemer as he was forced off with injury after 61 minutes. A post-match medical showed that the player ruptured a muscle in the back of his right thigh.

Bayern added: "Shaq will now definitely miss the Champions League round of 16 first leg away to Arsenal on Wednesday and the following Sunday's Bundesliga trip to Hannover."

Dante headed Bayern into a 19th-minute lead and Shaqiri scored with deflected shots in the 34th and 42nd. Claudio Pizarro completed the rout in the 88th as Bayern stretched its league record unbeaten run to 46 games.

''It's always hard when the whole world says you have to win,'' said Bayern coach Pep Guardiola after his side's 13th consecutive Bundesliga victory.

French winger Franck Ribery was already out after undergoing surgery on a burst blood vessel in his buttock.

Information from The Associated Press was used in this report.