Martinelli came on from the bench and created Viktor Gyokeres' second goal in the 3-0 win on Saturday.
“In the Premier League it's always like that,” the Brazilian said afterwards. “As the game goes on, I think it starts to open up, I thought we did well.
“They had to attack, and it was a good hook from (Christian) Norgaard I think, and it was just me and the defender. I just tried to be quicker than him and get it to Vik.
“I told him the other day that I didn't mean to steal his goal! (against Kairat). But I think I gave him two goals already, against Leeds and today, so he needs to give me one more!"