Despite calling the rumour that Hummels was on the brink of a €20m (£16m) move to Manchester United 'garbage' the German international defender continues to be linked with a move to Old Trafford.
Now he has used even spicier language to dismiss the rumour say: "If that's not a bulls**t story, I'll eat a broomstick."
Klopp has said there is 'no indication' that Hummels or Marco Reus have any interest in leaving the club this summer.
Dortmund replaced Lewandowski with Italy striker Ciro Immobile for a reported fee of €19m.
Immobile had been co-owned by Juventus and Torino and was Serie A top goalscorer last season after scoring 22 goals in 33 league games for Torino.
- Sports & Recreation
- Manchester United
- Robert Lewandowski