Arsenal manager Mikel Arteta was delighted with striker Gabriel Martinelli.

The youngster scored a superbly taken goal against West Ham United to give his side a 1-0 lead in the Premier League on Wednesday.

They eventually went on to win 2-0 thanks to Emile Smith Rowe adding another goal.

Asked if that was Martinelli's best display since Arteta became manager, the Spaniard said of the youngster:

"Well certainly it was one of the best in every aspect of the game.

"He was cramping again and he needs to mature in that sense but his overall understanding of the game is getting much better.

"He's able to put some gears into his play.

"Sometimes he's still doing everything at 100 miles per hour but the energy and quality he shows at times is top."