Now aged 23, he must begin to push for a first-team spot at Arsenal and while Wenger believes he has a role to play at the club, the French boss admits time is running out for him to make his mark.
“I have been very impressed with him, his attitude is outstanding,” Wenger said. “He can be a big help for us. In the coming two to three months he can be very important.
“I didn’t want to send him out on loan again. I wanted to keep him here. He has been on loan two or three times and that it is now or never for him with us.”
While Campbell has been given opportunities to shine over the past 15 months, it’s largely been a frustrating time for him as he seemingly continues to be played out of position.
The Costa Rican ace played a major role for his country at the World Cup in 2014, starring as a centre-forward as the Central American outfit stunned most and reached the quarter-finals.
Yet, on his return to the Gunners he featured predominantly in wide areas and worse, during his six-month loan spell at Villarreal, he regularly featured at right midfield in a flat 4-4-2 system.
Cambell boasts decent finishing, good movement and the ability to carry the ball, but he’s not a winger. His best position is undoubtedly down the middle, either as a centre-forward or playing off one.