Denis Suarez, right, has thrived on-loan to Sevilla this season. On Saturday, he'll make his first appearance at Camp Nou against the team that holds his contract. Denis Suarez may only be 20 but the Spaniard has already made a host of significant career moves. A product of Celta Vigo's youth system, he spent two years at Manchester City before FC Barcelona wrestled him away from English football in 2013. Last June, the Catalan giants agreed to send him on loan to Europa League holders Sevilla, a luxury destination for any young player hoping to become the finished article, and the results have been overwhelmingly positive. This Saturday marks a particularly...