Hansi Flick admits he has been surprised by Gabriel Jesus' impact since the striker joined Barcelona.

After four seasons with Arsenal, which ended with a Premier League triumph, Jesus completed a reported €15m (£12.8m) move to the reigning LaLiga champions this summer.

Despite starting on just one of his five appearances for Barca across all competitions, the 29-year-old has scored three goals for the Blaugrana.

He netted on his only start, which came last time out against Getafe, with Raphinha sidelined due to a muscle problem.

Raphinha, who has scored 21 goals in 34 Champions League games for Barca, is also expected to miss their trip to Galatasaray on Tuesday, with Jesus in line for another start.

"He's ready. Whether he plays, which we don't know yet, we'll decide after training," said Flick about Jesus.

"We're very happy with him. He's a bit of a surprise, we have to admit. His behaviour is fantastic and he's a great player."

Galatasaray and Barca have faced each other on 10 occasions to date, with the Turkish side winning just one of those (D3 L6): 2-1 in a Champions League home game in November 1994.

Barca have won their last four away games against Turkish teams in European competition, the last three of which have all been at Galatasaray (1-0 in March 2002, 2-0 in September 2002 and 2-1 in March 2022).

"They have very good attackers and we have to adapt," Flick said about Galatasaray.

"We always have to adapt to the opponent and to what we need. And that's what we'll do.

"Many of these [Barca] players are world champions, and we've seen that they're still hungry.

"It's difficult, but they're hungry. We have to work for our fans, for our families. It's difficult, and the road is long."