Borussia Dortmund defender Marc Bartra has taken another step towards a return to action just after a month after he was injured in the attack on the BVB team bus.

Bartra, 26, was the only player to sustain serious injuries in the explosives attack, which happened on April 11 ahead of the home leg of their Champions League quarterfinal.

The former Barcelona defender had to undergo surgery on his right arm, but has returned to training with the ball at Dortmund's Adi-Preissler-Allee training facilities.

He wrote on Twitter: "Nice training today with my best friend."

Spain international Bartra had been thought likely to be out for at least a month, but could return to action sooner than expected.

Dortmund play their last match of the season, the DFB Pokal final in Berlin, on May 27.