However, the Chile worldwide failed to help the visitors produce a goal and the two sides will meet again in two weeks at the Emirates for the second leg.
The Frenchman finds himself back in the stands at Stamford Bridge this evening as he serves the second of his three-match ban.
Conte has opted for a strong side that includes Alvaro Morata and Eden Hazard in attack, while Danny Drinkwater comes into the midfield in place of Tiemoue Bakayoko, who was ineffective against the Gunners last week.
David Luiz is expected to be rested as he played for the full 90 minutes in FA Cup tie against Norwich at the weekend as he has just returned from injury.
In the 28th minute, Chelsea were unlucky not to take the lead as Moses saw his effort cannon off the post.
Razer Phone Now Supports Netflix Content in HDR and 5.1 Surround Sound
An interesting detail is that being on the laptop, the screen of the Razer Phone will work as a touchpad or secondary screen. With this in mind, it should come as no surprise to learn that Razer is looking to do even more with the device.
Moses came close again shortly before the half-hour mark with another left-footed snapshot towards the bottom corner, but once again Ospina was down smartly to deny the Chelsea wing-back, with a little help from the woodwork.
Martin Atikinson consulted VAR as Arsenal supporters chanted the name of the trialled technology but the referee stuck with his initial decision of no penalty.
Arsenal were forced into a change in the 57th minute as Wilshere, who was getting back in form after a long lay-off, went off with a knock and was replaced by Mohamed Elneny.
A clever turn away from Shkodran Mustafi allowed Morata to test the side-netting from an acute angle once more.