GLASGOW, Scotland (AP) -After coming close to a home humbling against Celtic two weeks, Barcelona will hope to avoid a slipup in Scotland on Wednesday and secure early qualification for the Champions League knockout stage.
It took Jordi Alba's goal in the fourth minute of stoppage time at the Camp Nou to rescue a 2-1 victory against the Scottish champions and make it three wins out of three in Group G.
"This team is so great because they never give up, and always want more," defender Marc Bartr said.
And since that comeback, Barca hasn't been troubled domestically.
A 3-1 victory over Celta Vigo on Saturday secured a ninth win in 10 Spanish league matches, marking the Catalan club's best-ever start to a campaign.
"The team is still beating records," Bartr said. "I love the way all of the players are so ambitious ... what it shows is how great this team is and how versatile the players are."
Injuries have given Bartr a chance to play the last three games - his first of the season.
While coach Tito Vilanova should be able to deploy center back Gerard Pique on Wednesday after being sidelined with a sprained left foot, the defense will be without Adriano, who limped off with a right leg injury after scoring Saturday's opening goal.
Fortunately for Barca, Lionel Messi doesn't appear to have been troubled by the knock to his knee that briefly required treatment against Celta.
The Argentina forward scored twice on his last visit to Celtic in February 2007 when Barca won their last-16 Champions League match. Another two goals on Wednesday would lift Messi to 75 goals in 2012, matching Pele's 75 for club and country in 1958.
But Celtic has been working to ensure there will be no repeat of the late slackness displayed two weeks ago or again at the weekend when Efe Ambrose scored an own goal for the Scottish leaders, gifting Dundee United an equalizer.
"The last game was hell for us in the Nou Camp because we fought until the last minute before Barcelona scored their winner," Ambrose said. "It's very worrying that we've lost our concentration so late in these matches. In the Nou Camp, it was the 94th minute and then at Tannadice it was two late goals in two minutes, so we need to sort that out.
"We've talked about it with the manager and we know what we need to do - and we will do it."
Celtic is five points behind Barcelona in second place.
"We need to be more focused and go to the last minute and keep our concentration until the very end," Ambrose said.
If the Scottish champions can't pull off a shock against Barcelona, Spartak Moscow could dislodge them from second place with a victory at Benfica.
But the Lisbon club, which shares top place in the Portuguese league with Porto after an unbeaten seven-game start to the domestic season, must beat Spartak to keep alive its faint Champions League hopes.
Spartak headed to Portugal without injured strikers Welliton and Emmanuel Emenike, although boosted by a 5-0 rout over Krylya Sovetov on Saturday in the Russian league that put them fourth.
But Benfica will be hoping its strike partnership of Lima and Oscar Cardozo maintains its good form, having contributed 14 of Benfica's 27 goals this season.
"We're playing well together and that's benefiting the team," said Lima, who joined from Braga in the offseason.