Atletico Madrid striker Fernando Torres returned to training on Monday after recovering from a head clash, suggesting he could play in Wednesday's Champions League tie against Bayer Leverkusen.

Torres lost consciousness in a challenge with Deportivo la Coruna's Alex Bergantinos in a 1-1 draw on March 2 but was discharged from hospital with no serious injuries.

Despite rejoining his teammates on the training pitch, the 32-year-old has yet to receive an all-clear from doctors.

Atletico coach Diego Simeone last week said he believed Torres would be fit in time for the last-16, second-leg at Vicente Calderon stadium, where Atletico will look to defend its 4-2 lead.

The former Liverpool forward came off the bench to score Atletico's fourth goal in the first leg in Germany but has been sidelined for the team's last two games in La Liga.

Agence France-Presse