?A childhood friend of Diego Costa has claimed that the striker has "been training with a fitness coach from Atlético Madrid for 40 days" ahead of his return to the Spanish club in January. It was confirmed last week that the forward had completed his exit from Chelsea, and he was in attendance at Atletico's new Wanda Metropolitano stadium for Saturday's 2-0 win over Sevilla. But Costa will be unable to feature until January, leading to concerns over his fitness following his lack of first...
Source: 90min.com