Francis Coquelin Injury: Updates on Arsenal Midfielder's Knee and Return

Arsenal defensive midfielder Francis Coquelin returned for the Gunners during their Champions League tie with Olympiakos on Tuesday.

The Frenchman previously limped off during the Sept. 19 match with Chelsea after suffering a knee injury, per Sky Sports.

Coquelin is widely regarded as Arsenal's only true holding player. When compared to all the technical maestros boss Arsene Wenger has filled the Gunners midfield with, Coquelin offers more combative qualities. 

He's a tough tackler with an aggressive desire to win possession. Just as importantly, Coquelin possesses natural positional discipline.

In his absence, Wenger would typically deploy Mikel Arteta or Mathieu Flamini alongside playmaker Santi Cazorla in the withdrawn role in midfield.

However, that pair are also unavailable, heightening the importance of Coquelin's swift return to full fitness.