Borussia Monchengladbach head coach Lucien Favre praised loan signing Christoph Kramer for his impact since joining the club.
Monchengladbach face Kramer's parent club Bayer Leverkusen in the Bundesliga on Saturday, having lost 3-1 to Bayern Munich and defeated Hannover 3-0 in their opening two league fixtures.
And Favre believes the 22-year-old midfielder is making good progress since making the temporary switch in the close-season, but urged him to stay focused.
"He has been preparing well and has played well in our opening three games," the manager said.
"But it is early days. He has shown quality but he still has work to do, he knows that and is working at it in training."
Favre also warned his charges to be wary of a strong Leverkusen outfit, and particularly highlighted their strength at set-plays.
"Bayer Leverkusen are one of the best clubs in Germany," he continued. "They almost always make it into the Champions League. They deserved to last season, because they played very well.
"They have started very well this season and have six points already.
"They can counter and are good at set pieces. When they are under pressure they play long balls and are very dangerous."
|18||S. Sam||28' 60'|
|Coach: S. Hyypiä|
for R. Hilbert 62'
for S. Kießling 83'
for Heung-Min Son 88'
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