The Gunners midfielder says he knows Xhaka's game well and believes he is a strong addition to the side.
The midfielder has seen his time at Villa severely hampered by long-term injury problems but is back fully fit this summer.
The defender completed a move from Liverpool on Wednesday.
A look at how Nottingham Forest could look to benefit from their manager's friendship with the Tottenham Hotspur boss.
We take a look at three Everton players Hull City could sign if Roberto Martinez becomes manager.
Leeds have reportedly handed a trial to Gabriele Perico.
Wolverhampton Wanderers midfielder is said to be of interest to Newcastle United.
All the latest transfer stories surrounding Everton.
20-year-old O'Connell made his European debut for the Bhoys on Wednesday.
Garry Monk has spoken of Leeds United's need to strengthen in multiple positions, and Armand Traore would be an ideal signing.
Tottenham were linked with Jesse Lingard earlier this month.
The Sunderland striker is being heavily linked with a return to West Ham United this summer.
The attacking midfielder joined Wolfsburg in January despite previous reports suggesting Tottenham Hotspur were interested.
Tottenham Hotspur's hopes of signing Leon Goretzka could be impacted by none other than Nabil Bentaleb.
Aurelien Chedjou claims he had an offer from Southampton in January.
Leeds have been linked to Rangers ace Martyn Waghorn, but it is not the first time.
Re-balancing the equation.
Liverpool have reportedly offered a deal to Schalke defender Sead Kolasinac.
Glasgow Rangers should try an ambitious loan bid in an attempt to bring an academy graduate back to Ibrox this summer.
Jose Mourinho believes Manchester United can no longer poach players from top Premier League rivals.
Owen Smith has copied his new policy ideas on workers’ rights from Jeremy Corbyn, the Labour leader’s campaign team has suggested.
Zinedine Zidane has hinted Real Madrid could swoop for Paul Pogba despite Manchester United’s willingness to pay a world record fee for the midfielder, with the head coach saying his club are always in the market for the finest footballers.
Teams competing in the FA Cup will be able to field a fourth substitute from the sixth round onwards in the competition this season, the Football Association have announced.