MUNICH — Bayern Munich must be patient in attack and wary of Manchester United on the break in their Champions League quarterfinal second leg Wednesday, coach Pep Guardiola said. Holder Bayern has a slight edge after a 1-1 draw in Manchester last week but Guardiola warned of the English team's defensive tactics and its appetite for quick breaks. “I think United will be again waiting for us at the back. They will be waiting deep, deep in their own half,” the Spaniard told reporters Tuesday. “English teams defend and then wait for the quick break (United coach) David Moyes also has eight, nine players at the back. They are waiting for mistakes, set pieces and breaks. “That is why we have to be disciplined. We are playing at home and that is important and we know exactly what to do to attack well.” Guardiola said he was convinced United forward Wayne Rooney would be on the pitch despite a toe injury that has cast doubt over his participation. “He will play, 100 percent,” said Guardiola. “Great players always play the great games.” Guardiola brushed aside its first league defeat after 53 games Saturday to Augsburg, saying he was not after records. But after the draw in Manchester and another draw against Hoffenheim it is the first time since 2011 that Bayern, which clinched the Bundesliga title in record time last month, has gone three straight games without a win. Bayern will be without two key midfielders, with Bastian Schweinsteiger suspended following his red card in the first leg and Thiago Alcantara injured, leaving Toni Kroos and possibly right back Philipp Lahm to occupy those positions. Costa in fitness battle Atletico Madrid hopes to have talismanic striker Diego Costa back fit against Barcelona also Wednesday when the La Liga leader bids to pull off another Spanish surprise by reaching the Champions League semifinals. Spain's Costa has hit 33 goals for Diego Simeone's side in a remarkable season for Atletico, where it has come out of the shadows of its more affluent neighbor Real Madrid and La Liga champion Barca. It picked up a 1-1 draw in a typically hard-fought battle at the Camp Nou in the Champions League first leg last week, where Costa limped off with a hamstring strain in the first half. His replacement Diego hit a stunning shot from distance to give Atletico a valuable away goal before Neymar grabbed a draw. Arda Turan is also a doubt with a groin strain and if he does not recover then his place on the right wing would likely go to Diego with Adrian Lopez possibly replacing Costa. Barcelona was also below its best but beat Real Betis 3-1 at the weekend with two more goals from Lionel Messi and remains on Atletico's shoulders with the two sides also still to meet at the Camp Nou in La Liga. Its main injury concerns are at the back where Gerard Pique is missing with a hip injury so Marc Bartra could again deputize with Carles Puyol out long term. Barca also has to finish the season with veteran goalkeeper Jose Manuel Pinto after Victor Valdes was ruled out with a knee ligament injury. — Agencies