Joel Campbell has said that he will try to "take advantage" of his chances to play at Arsenal this season.
The striker has spent the last two seasons on loan, but has featured just three times in the Premier League this term after remaining at the Emirates in the summer.
The Costa Rica international told the club's website: "I always try and take advantage of the chances that come my way and play as well as I can. I know that I can give more, so I'm working hard day in, day out to improve as a player.
"The Champions League is a big competition for any player. In a team like Arsenal, it's easier to play well because you're surrounded by good players. I just try to do the best I can so that I might be involved in future games.
"We need to be fighting for the trophy. We're in there and any team still in the competition at this point has a chance of winning the cup. We'll be working very hard to try and achieve that."
Campbell played all 90 minutes during the team's win over Galatasaray in the Champions League earlier this week.