Sunderland have joined one of Spain’s biggest clubs in their pursuit of a former Chelsea starlet. Sunderland are in desperate need of some attacking reinforcements this summer, having really struggled to create chances or score goals last season. Jack Clarke is likely to earn a move to the Premier League, while Patrick Roberts and Abdoullah Ba’s form certainly wont fill the club or fans with much hope. While supporters are eager to see the club invest in more experience, it appears their eye for youth isn’t going to end anytime soon. According to Esport Base Media, Sunderland have now joined t…