Arsène Wenger will go all out to win the Europa League ahead of a summer review of his position in an attempt to stop this season becoming the first in which he has neither lifted a major trophy nor finished in the top four.

Arsenal lost striker Alexandre Lacazette on Monday for up to six weeks with a knee injury, leaving Danny Welbeck to lead the attack against Swedish club Ostersunds in the first leg of their last 32 tie on Thursday because of the Europa League ineligibility of Pierre-Emerick Aubameyang.

Wenger intends otherwise to be at full strength and his own situation will be up for discussion later this year as Arsenal try to avoid a repeat of the managerial uncertainty that dominated last season. That would mean making decisions either this summer or early next season about Wenger’s contract and it is understood that all options – including making a change this year, extending his contract beyond 2020 or even announcing that next season will be the last – remain on the table.

Arsenal felt less prepared last year for life after Wenger, but chief executive Ivan Gazidis has been backed by majority owner Stan Kroenke to lead a comprehensive overhaul of the structures around his 68-year-old manager. It was noticeable that new head of recruitment Sven Mislintat, new contract negotiator Huss Fahmy and Gazidis should form Arsenal’s delegation last month to complete the club record signing of Aubameyang.