The Brazilian-born striker ended a five-game scoring drought to lead the Blues past Southampton with a second half brace.

Winning against Southampton was crucial for Chelsea, but having Diego Costa scoring will surely help Antonio Conte's sleeping patterns.

The Spanish striker ended a 5-game streak without a goal by scoring a brace for the Blues, good enough to lift them over the Saints with a 4-2 score. The stand out fact for Costa came with his first goal, a header, which saw him reach the 50-goal mark in the EPL in 85 games.

Even Chelsea's Twitter feed celebrated his accomplishment.

His second goal, a true team effort, capped Chelsea's performance and cemented their seven-point lead at the top of the Premier League.