Rolfes knows that Xabi Alonso is in high demand after the team's impressive start to the season.
While Rolfes acknowledges that Alonso is shining at Leverkusen, he does not believe the lure of Liverpool would cause the Spaniard to jump ship in the summer.
Sporting director Rolfes told German broadcaster SPORT1: "Yes, I'm sure.
"One [reason] is the contract. The other thing is how comfortable he feels, the family, himself and that he knows what he has in the club. He also has a very good team, we will have a very good perspective next year and there's no change in the team.
"We will definitely have a top team available next year. These are all points that - in addition to contracts - coaches like Xabi, but also players who [attract] interest, often stay with us."