The French forward, a £52million signing from Lyon last summer, has been out of action since defeat in the North London derby last month.
Lacazette, 26, is now expected to return to the match-day squad after the international break having not played since February 10.
On whether Lacazette was recovering well from his injury, Gunners boss Arsene Wenger claimed: "Yes, he’s on track.
"He had a full session today, he should be back after the break."
Lacazette was on a long, dry-run in front of goal prior to his injury, having scored just once in 13 games in the lead up to the knock.
All-in-all, Lacazette has scored nine times in 31 games for Arsenal in all competitions, including both in the 2-0 win over West Brom in September.
Meanwhile, Aaron Ramsey is confident Arsenal can get their season back on track… thanks to the Europa League.
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The Welsh midfielder revealed: "Hopefully we can build on this and go from strength to strength.
"It’s a massive opportunity for us, we’re prepared to give absolutely everything. This game is very important for our season.
"They’re a quality team, we’ve seen how good they are. They’ve turned a corner as well with their new manager.
"It’s going to be important for us to stay focused from the beginning, we can’t take this lightly at all.
"We can’t take our foot off the gas, we need to treat it as if it’s 0-0, that’s the right mentality to have."
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