Real Madrid have received some positive news on the injury front in the build-up toward the Champions League Group D match at home against Ajax on Tuesday evening, as Ricardo Carlvalho has resumed regular training again after a brief injury lay-off.The former Portugal international sustained a head injury in Real Madrid\'s scoreless draw against Racing Santander last week and was consequently forced to watch the 6-2 league win over Rayo Vallecano on Saturday from the stands.However, Madrid have now announced on their official website that Carvalho has fully recovered and took part in Monday morning\'s group training without any noteworthy problems.His return will be a welcome update for the Spanish giants as they are already without defenders Pepe and Fabio Coentrao due to injury, while full-back Marcelo is suspended following his dismissal against Dinamo Zagreb.Tuesday\'s game at Santiago Bernabeu kicks off at 20:45 CET.