Joel joined Arsenal from Deportivo Saprissa in August 2011.
The 20-year-old, who was in the Costa Rica squad for the 2011 Copa America and the Under-20 World Cup, will spend this season on loan in La Liga with Real Betis.
Joel Campbell Profile
June 26, 1992
|Previous Club(s)||Lorient (loan), Deportivo Saprissa, Puntarenas (loan)|
Born in the Costa Rican capital San Jose, Campbell is predominantly left-footed and has made a number of full international appearances. Now a regular for Costa Rica's senior team, Joel has scored against the likes of Spain and Wales.
He had two seasons in his native Primera Division, where he played for Deportivo Saprissa and on loan at Puntarenas, making eight league appearances in total.
The striker spent the 2011/12 season on loan in Ligue 1 with Lorient, where he scored four goals in 27 appearances.