Emile Smith Rowe has hailed the impact of former Manchester City pair Oleks Zinchenko and Gabriel Jesus on Premier League leaders Arsenal.
The Gunners midfielder says he "couldn't believe" that City sold Jesus and Zinchenko to Arsenal.
Smith Rowe said: "I couldn't believe it to be fair [Man City letting Jesus and Zinchenko leave to join Arsenal].
"Even in training, when I came back from training, they were so good. Obviously, Gabby got injured, but Zinchenko's one of the best technical players I've ever seen.
"The likes of Zinchenko and Gabby Jesus [joining], I felt like it changed the whole dynamic. They've been there, they know what it's like to win stuff.
"I'd definitely say a lot of it [challenging for the title] is down to them two because their mentality was indescribable. We're all aiming for one thing at the end of the season.
"Obviously, we're not talking about it because anything can happen. I hope we can be very happy at the end of the season."