AC Milan goalkeeper Gianluigi Donnarumma has apologised after defeat to Sampdoria.

Donnarumma's howler in the opening 33 seconds proved decisive, as Gregoire Defrel pounced for the winning goal.

“I thank my teammates for their support, including at the final whistle. Mistakes happen and I apologise to everyone," Donnarumma told Milan TV.

“When you try to play out from the back, you can make an error, these things do happen. I'm sorry that we weren't able to even get a point out of it, but we have to look forward.

“Last year I went through a very rough time and if I managed to get through that, I can get through this too… The role of a goalkeeper means you can't let things fester, you need to get over it and make up for any error straight away."