Barcelona travel to Rayo Vallecano on Wednesday night with Ronald Koeman's job hanging by a thread.

His Barca side were comfortably out-played by Real Madrid in El Clasico at the weekend - despite the 2-1 scoreline - and the defeat ensured the Blaugrana have now lost four Clasico's in a row. Three of those have come under the management of Koeman, making him the first manager in over 85 years to lose three consecutive games in the rivalry.

The side are now ninth in La Liga, so a win over Rayo Vallecano is simply essential. Defeat and Koeman may be out of a job.

He has been hampered by injury problems this season, with the likes of Pedri, and Ronaldo Araujo still out, while Frenkie de Jong suffered a hamstring issue in El Clasico, and Ansu Fati also picked up a knock.

That certainly weakens them, but Koeman will be buoyed by the return of Sergio Aguero. The former Manchester City man has appeared off the bench three times for his new club, and he now looks fully fit, and is set to start in this midweek clash.

How will Barcelona line up?

Marc-Andre ter Stegen has been arguably Barcelona's most reliable player over the past five years, of those still at the club, so will resume duties in net.

With Sergino Dest forced to play as a right winger due to the injury issues in forward areas, Oscar Mingueza will once more fill in at right-back. Jordi Alba will be on the opposite flank, with Gerard Pique and Eric Garcia in the middle.

With De Jong injured, Sergi Roberto will be the most likely to take his place alongside Sergio Busquets and Gavi.

As mentioned, Dest will play in an advanced role on the right, with Mempis Depay on the left. Fati's knock may rule him out from the start, and he'll be replaced by Aguero, making his first start for the club.