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.
The young defender is going from strength to strength at Inverness after joining from Celtic last month.
The speedy striker has been linked with a summer move to Everton as his contract at Hull City runs down.
Could Martin Jol take the reins for Glasgow Rangers at Ibrox?
Former Crystal Palace chairman Simon Jordan criticises Tottenham Hotspur for failing to progress to the last 16 of the Europa League.
The Dutchman remains on the market, with Rangers reportedly keen on taking him to Ibrox.
Mainly contractors and consultants.
The 30-year-old is out of contract in the summer and Leeds United may be in the market for a left-back.
Eric Dier's poor form at Tottenham continues.
Ibrox outfit Glasgow Rangers are behind Old Firm rivals Celtic and Aberdeen in the Scottish Premiership table.
Rangers were linked with bringing James Vaughan to Ibrox.
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.