BERLIN – Bayern Munich host Werder Bremen on Saturday in the Bundesliga looking to extend their unbeaten run in all matches to 20 while their guests are hoping the Bavarians suffer a Champions League hangover.With a 15-point lead, Bayern are running away with this season’s title and 11th-placed Bremen last tasted victory at Munich’s Allianz Arena back in September 2008.Fresh from their impressive 3-1 Champions League win at Arsenal on Tuesday in the last 16, first-leg tie, Munich are on a roll and Werder midfielder Mehmet Ekici, who grew up in Munich, says they hope to catch Bayern cold."We want to play at their level, play aggressively and give our all,” said the Turkey international."If we just pull back and let Bayern do their thing, then it will be very difficult. But if we are alert from the first second on and keep focused, then we could also take points from Munich.”Werder will have to work hard to breach Bayern’s defence, which has leaked just seven goals in the league all season, while goalkeeper Manuel Neuer has had to save just one shot in the last 281 minutes of league action.One factor in Bremen’s favour is Bayern’s German Cup quarterfinal next Wednesday at home to holders Borussia Dortmund.