Maybe Mignolet has picked up his game because he knows Karius was ready waiting to take his place, I like that Klopp has taken the difficult decision, rather than waiting for a Mignolet f*ck up that costs us a game.
the only reason Migs has improved this season is Karius
Most keeper make a few big mistakes in a season, even De Gea, Courtious. So would it have hurt to wait until Mignolet loses his form considering the start he has made.
And also, it might be the competition that has spurred him on, but I don't think it matters. Klopp is going to play Karius unless he has a really poor run and only then will Mignolet come in and probably only temporarily. Doesn't make sense to me. Karius might be the long-term no 1 but I think Klopp is being impatient.