Premier League: Full round-up of Saturday's reports

Diego Costa scores Chelsea's first goal
Chelsea's Diego Costa scored his seventh goal in eight league games under Guus Hiddink

Read all the reports from Saturday's Premier League games, including Chelsea's 5-1 win over Newcastle and Sunderland's 1-0 victory against Manchester United.

Chelsea 5-1 Newcastle

Crystal Palace 1-2 Watford

Everton 0-1 West Brom

Norwich 2-2 West Ham

Sunderland 2-1 Man Utd

Swansea 0-1 Southampton