Jack Wilshere has declared he is close to his best form at Arsenal and expressed his desire to stay at the club.
It was three soon after as Walcott whipped in a unsafe corner that was flicked on by Per Mertesacker and finished by Rob Holding for his first Arsenal goal.
Olivier Giroud regained the three-goal cushion with a penalty after half-time, but Mikhail Gordeichuk made it 4-2 with just over 20 minutes remaining from six yards. If the second goal was a gift from the goalkeeper then the fourth was a present from the referee who pointed to the spot for a seemingly innocuous challenge. They have been good to me over the years, I have a great relationship with the boss.
Lazio made heavy work of beating Belgium's Zulte Waregem 2-0 with Felipe Caicedo netting after 18 minutes but had to wait until Ciro Immobile scored in stoppage time for their second.
Aleksey Rios - 5/10 - Rios defended well on occasions, and blocked numerous Maitland-Niles crosses and denied him after Wilshere got the ball to him in a risky area.
Lazio won in an empty home stadium, UEFA punishment for when its fans racially abused a Sparta Prague player in 2016.
Uber's new CEO apologizes to Londoners after citywide ban
Taxi firm Uber is likely to remain on London roads for more than a year despite being banned by Transport for London bigwigs. Labour Mayor Sadiq Khan was quick to endorse the decision of an agency he supervises.
Last league meeting between these two sides took place in 1982-83, but they played each other recently in FA CUP.
The Arsenal squad celebrate Lacazette's goal against West BromWhat is the team news?
Complacency seemed to plague Arsenal's game after Giroud grabbed their 4th and sloppy errors subsequently put the Premier League outfit under unquestionable pressure, with David Ospina being forced into making a number of point blank saves.
The one player that stood out the most last night, without question, was Jack Wilshere. But with no talks even planned at this stage over the renewal of his deal, a prolonged spell of fitness will be key to convincing Arsene Wenger to sanction another contract. "There were chances but I can't be too selfish". I enjoy working with these top players again.
"I don't know, but I have a feeling that he's going to take his reliability away from selection".
Maksim Volodko - 6/10 - Similarly to Palyakow, who he replaced, Volodko did well to keep Nelson quiet and showed some attacking intent.