Carlton Cole has announced that he has been released by West Ham for the second time in two years.
Teenager Mark O'Hara has signed a two-year extension with Kilmarnock.
Reus has been linked with a move away from Dortmund this summer after reportedly attracting attention from some of Europe’s top teams, including Manchester United and Barcelona.
Atletico Madrid were also rumoured to be interested but their president Enrique Cerezo last week ruled the Spanish side out of the running and claimed that Reus had turned down a move to Manchester United.
The 25-year-old remains under contract at Dortmund until 2017 and Klopp is convinced that he will continue to be a key part of the club’s future.
“I can tell you I have a great feeling regarding Marco Reus' future at Borussia Dortmund,” Klopp told Deutsche Presseagentur.
“Marco will definitely be around at our club for quite a while.”