By . David Kent . Arsenal are working on a deal for Atletico Madrid right-back Javi Manquillo. The Gunners want the Spaniard to compete with imminent signing Mathieu Debuchy for the right-back slot next season. VIDEO Scroll down to watch Arsenal's new signing Alexis Sanchez freestyle with Chile . Target: Atletico Madrid's defender Javi Manquillo is wanted by Arsenal . Sources in Spain claim Arsenal want to take Manquillo on a season-long loan with a view to a permanent signing. The news casts more doubt over Carl Jenkinson's future at the Emirates Stadium. The young right-back is a target for Newcastle. On his way: Carl Jenkinson could be on his way with Newcastle interested . VIDEO Arsenal seal Sanchez swoop .
Arsenal keen on Spanish defender and could take him on season-long loan . Move could end Carl Jenkinson's career at Gunners with Newcastle interested . Arsene Wenger has already signed Alexis Sanchez and is close to wrapping up a deal for Mathieu Debuchy .