Arsenal are leading Manchester United and Barcelona in the race for Villarreal defender Mateo Musacchio, according to The Express.
United and Barcelona were initially thought to be battling it out for Musacchio's services, but now their attentions have shifted and Arsenal have sensed their opportunity to swoop.
United's appointment of Mourinho has changed their summer plans, whilst Barcelona are now looking at Everton's John Stones to partner Gerard Pique in the heart of their defence. Meanwhile, Arsene Wenger has requested the recruitment of a defender to compete with Gabriel in the race to partner Koscielny as Mertesacker isn't getting any younger.
The side that pose the biggest threat to Arsenal's pursuit of Musacchio is now Roma. The Italian may have to replace Antonio Rudiger - who has reportedly been subject to a bid from Chelsea.