Arsenal's Lacazette and Tierney return to training ahead of second leg semi-final tie against Villarreal

Earlier today, Arsenal duo of Kieran Tierney and Alexandre Lacazette were spotted in training at the London Colney. 

Just so you know, Tierney and Lacazette have been out for the past few weeks due to injuries.

For Alexandre Lacazette, it suffered an harmsting injury during the Gunners draw against Fulham two weeks ago. 

While Kieran Tierney suffered an injury and was substituted when Arsenal faced Liverpool two months ago. The Scottish international was suggested to undergo a surgery but the medical department decided to allow him rest and recover without necessarily undergoing any operation. 

Although, it's uncertain whether they will be available for selection when Mikel Arteta and his players host Villarreal at the Emirates stadium on Thursday.

Arsenal lost the first leg of the semi final but have an away goal scored by Nicolas Pepe from the penalty spot.

The Gunners are currently in 9th position in the league standings and are desperate to pick up an automatic ticket for the Champions League by winning the Europa League.