Arsenal are likely to receive a payment of £5m following Cesc Fabregas' move to Chelsea from Barcelona.
The former Gunners skipper completed his return to the Premier League on Thursday, signing a five year contract at Stamford Bridge in a move that has reportedly cost Jose Mourinho's side £27m.
Fabregas confirmed reports that the Gunners turned down the opportunity to bring him back to north London as Arsene Wenger opted to waive a clause that gave the club first refusal on the midfielder in the event of his sale.
Initial reports suggested the club would fail to earn a penny from another clause inserted in the deal that saw the midfielder leave the Gunners for the Nou Camp in 2011. Arsenal are entitled to 50 percent of any profit made by Barcelona, but the midfielder's reported fee of £27m was not thought to not be enough to activate the sell on fee.
However, the Daily Telegraph suggest that despite Chelsea's best efforts, Arsenal will receive £5m from Barcelona in "an acceleration of all incentive payments".
Upon return to Cataluña three years ago, Barcelona paid Arsenal a fee of £25.4m up front in addition to £4.4m in add ons if the club were to win two La Liga titles and a Champions League before 2016.
In his three years at the club, Fabregas celebrated just one league success in 2013 as the club struggled in Europe, but his former club are still to receive the agreed amount despite failing to meet those achievements.
Upon announcing his return to the Premier League, Fabregas said: "I do feel I have unfinished business in the Premier League and now is the right time for my return. Yes, everyone knows that Arsenal had the first option to sign me. They decided not to take this option and, therefore, it wasn't meant to be. I wish them well in the future.
"I considered all the other offers very carefully and I firmly believe that Chelsea is the best choice. They match my footballing ambitions with their hunger and desire to win trophies. They have an amazing squad of players and an incredible manager. I am fully committed to this team and I can't wait to start playing."
The Spaniard will wear the number four shirt vacated by David Luiz at Stamford Bridge.