The Spaniard was handed a rare start in the 2-0 Capital One Cup win over Swindon Town on Tuesday night and responded to the call by scoring a goal and providing an assist.
"We have great strikers and all of us are going to score goals. It's nice to have this competition. The season is going to be long like the last one. There'll be time for all of us to play in important games and score some goals," he told the Evening Standard.
"The main thing is we keep winning. We are in the top four in the Premier League and have moved one step forward in the [League] Cup.
"We're all fighting to be in the line-up, to be in the squad. It is not easy but is good for the improvement of the team. There are players who have not been involved in the last few matches and the passion and character is plain to see.
"The response of the team has been great. The match against Swindon was my first 90 minutes since the Bayern Munich game in the [Uefa] Super Cup. Sometimes you don't realise you haven't played 90 minutes for a couple of games until you feel so tired at the end."