Sunderland have sacked manager Phil Parkinson after going five games without a win.
The Black Cats sit eighth in Sky Bet League One table - seven points behind leaders Hull.
Parkinson leaves the club 13 months into a two-and-a-half-year contract, while assistant Steve Parkin has also departed.
A Sunderland statement read: 'The club would like to place on record its thanks to both Phil and Steve for their efforts during their time at SAFC.
'Preparations for Tuesday's Sky Bet League One fixture against Burton will resume on Monday, with first-team coach Andrew Taylor taking charge of the squad.