Arsenal manager Arsene Wenger has admitted he is still on the lookout for another centre-back after the sale of Thomas Vermaelen to Barcelona.
The Spanish giants paid £15m to take the Belgian defender to the Nou Camp, despite the 28-year-old being Wenger's clear third choice behind Per Mertesacker and Laurent Koscielny last season.
Wenger started with new boy Calum Chambers, 19, and Koscielny in the centre against Manchester City in the Community Shield victory, but the French defender picked up a knock and had to be substituted at half-time.
With Per Mertesacker only just back at training Wenger had to play Spanish left-back Nacho Monreal in the middle.
Arsenal 3 Manchester City 0 player ratings
Arsenal 3 Manchester City 0 player ratings
1/24 Arsenal: Wojciech Szczesny
Fans’ favourite had surprisingly little to do. Dealt well with two efforts from Jovetic but was otherwise untested as Arsenal coasted to victory.6/10
2/24 Mathieu Debuchy
Could not have wished for easier “competitive” debut. Strong in the tackle – one important block on Nasri – and got forward at every opportunity.6
3/24 Calum Chambers
Another encouraging debut for the Gunners. Quiet but effective, he showed why Wenger was willing to allow Vermaelen to depart.6
4/24 Laurent Koscielny
Cool and calm but did not have much to worry about. Helped out Chambers in defence before being replaced by Monreal at the interval due to injury.6
5/24 Kieran Gibbs
Enjoyed numerous chances to get forward as Arsenal began with confidence and also dealt well with sporadic threats posed by Navas after the break.7
6/24 Aaron Ramsey
Fulcrum of Arsenal’s good work picked up where he left off last season with a goal at Wembley. A constant threat whenever he came forward.8
7/24 Mikel Arteta
Often divides opinion among fans but helped control game from middle of the park. Rarely lost possession and patrolled the area in front of defence.6
8/24 Alexis Sanchez
Multimillion-pound arrival showed pace and potential on right wing. Fine ball through to Sanogo led to second goal before he went off at interval. 7
9/24 Jack Wilshere
Seemed to spend an inordinate amount of time on the ground – one such incident leading to Cazorla’s opener. Good with the ball but could do so much more.7
10/24 Santi Cazorla
Afforded time and space to come inside and test City and he showed fine composure and footwork to make space to score the opening goal.7
11/24 Yaya Sanogo
Has won plaudits for pre-season form but still yet to convince on main stage. Dragged wide but held ball up well for Ramsey to steer in Arsenal’s second.6
12/24 Olivier Giroud
Much-maligned forward replaced Sanogo and made an instant impact with a fantastic finish from distance to remind people of his qualities.7
13/24 Manchester City: Willy Caballero
Argentinian debutant was given a chance to impress in place of Joe Hart but struggled to convince. Quick off his line to block an effort from Sanchez.5
14/24 Gaël Clichy
Looked uncomfortable in an unfamiliar right-back berth before a belated return to more familiar surroundings following the introduction of Richards.5
15/24 Dedryck Boyata
Sent off against the Gunners in 2010 and again struggled against the Londoners. Cumbersome, positionally poor and to blame for Arsenal’s second goal.5
16/24 Matija Nastasic
Has struggled to convince fully in sporadic appearances. Slight deflection for Giroud’s goal. His display will not have threatened Vincent Kompany’s place.5
17/24 Aleksandar Kolarov
Unable to get forward to any great effect as City were pinned back by Arsenal. Troubled Debuchy at times before being replaced by Richards.6
18/24 Jesus Navas
Spaniard displayed tricky feet and looked for openings but was largely ineffective. Provided a cross for Jovetic to hit the post but substituted late on.6
19/24 Yaya Touré
Ivorian powerhouse traditionally enjoys his Wembley outings but was lethargic and uninterested here. A disappointing display from such a sublime talent.5
Has not threatened the place of his near-namesake Fernandinho. Had too much to do alongside a languid Touré. Dragged wide and brought down Ramsey.6
21/24 Samir Nasri
Delighted in belittling Arsenal fans pre-match but it was his former adorers who had the last laugh. The Frenchman made no impact and lasted just a half.5
22/24 Stevan Jovetic
Has sparkled in pre-season but was given little to work with here. Hit the post before blazing over and forced Szczesny into a fine save. City’s best, though.7
23/24 Edin Dzeko
Gave Arsenal food for thought with his physicality and direct running, but only on occasion. Taken off for James Milner early in the second period.6
24/24 David Silva
Replaced boo-boy Nasri at half-time and fizzed around with imagination. Was unable to engineer the great comeback City required, though.6
"If I can find another centre-back I will do it," Wenger said after an impressive 3-0 win. "You make your position with your performances."
Wenger also singled out Chambers for praise. Although he mostly played at right-back for Southampton last season, the teenager has impressed in his three games for Arsenal, all of which he has played in the middle.
Video: The latest transfer news
"For a 19-year-old, he had an outstanding performance today," added Wenger. "He was very impressive."
Arsenal start their season at home to Crystal Palace on Saturday evening.
- More about: