Cesar Azpilicueta has warned his Chelsea teammates that Swansea City have more threats than just Spanish attacker Michu.

Michu, 26, has earned a number of plaudits for his performances this season, having scored 15 goals in all competitions for the Swans.

However, ahead of the League Cup semi-final meeting between the two clubs this evening, full-back Azpilicueta says that the Blues will have to be on their guard against a number of players.

"We are playing against a difficult team and we will need to concentrate from the first minute on Wednesday until the last minute of the second leg," he told the club's official website.

"Michu has done well and he's one of the top scorers in the Premier League. I watched him last season in Spain but I didn't know too much about him.

"He's a good player but he's not the only one, they have a lot of strengths so we will need to be at our best."

Like his fellow Spaniard Michu, 23-year-old Azpilicueta arrived in the Premier League during the summer.