But, after a slow start at Liverpool following his ($46 million) move, Oxlade- Chamberlain has started to hit his stride in recent weeks - just in time for his first return to Emirates on Friday. "I think the biggest improvement, or the biggest potential he still has, is really being involved in goalscoring situations, because he has it in himself", Klopp said.
"He can be much more decisive in a few moments". He has it in him, but he maybe hasn't been asked to do that too much in the past.
"It would be not fair to put the defeat at Liverpool, where the whole team had a bad performance, on one player", he said.
Since losing 4-1 to Tottenham at Wembley in October, though, they have conceded only four goals in nine Premier League games.
Klopp suggested adjusting to the difference between Arsenal and Liverpool's styles, as well as joining after the season had started, was a factor in how things have panned out for Oxlade-Chamberlain.
Klopp's approach has changed since that day, however, with the German navigating a busy winter schedule of 13 games in 45 days by routinely changing his starting lineup.
"For example, Alberto Moreno did fantastic this season, and then we played at Sevilla and he did not well".
Regarding how Arsenal play, he also described Arsene Wenger's men as a "complete football team" capable of changing styles, who, against his side, have "quite often...played a lot of long balls".
'After that, on the other side, you analyse "did you make mistakes or not?"
Liverpool will head into Friday's match against Arsenal a changed side-a more defensively capable side. We have to defend them and use any spaces we can find. Giroud can't play, but they have a lot of good, good footballers on the pitch.