The Bundesliga side lost 2-0 against Chelsea at Stamford Bridge in September, but Sam believes his side will do better this time around.
“Chelsea are a tight team,” Sam was quoted as saying on the official UEFA website.
“They are a team with big names. That’s what characterises them. They are very robust and play well. They play the ball up front very quickly and directly. They are a great team.
“We did quite well at Stamford Bridge and might have got a bit more, maybe a draw. But now we play Chelsea at home. We want to win the game and will give everything.”