Arsenal have been on the receiving end of this sort of thing from the current Spanish La Liga champions before, most notably when the Barca players led an orchestrated and determined campaign to let our then captain Cesc Fabregas know that he was wanted at the Nou Camp without the Catalan club having to make an official approach.
The pressure went on and Fabregas made it clear to Arsene Wenger and Arsenal that he wanted to return to Spain to play for his boyhood club where he had been at the famous La Masia academy as a youth player. Just like he did with Fabregas, Wenger took our current right back Hector Bellerin from Barca and gave him the chances to p[lay that he would not have got had he stayed.