Jonny Hayes scored a well-deserved second-half winner as Aberdeen moved two points behind Rangers with victory at Tynecastle.
The winger converted Niall McGinn's driven cross in the 66th minute to earn a 1-0 win that saw the third-placed Dons open up a six-point lead over Hearts in the Ladbrokes Premiership.
Ian Cathro had managed his first victory in charge of Hearts in midweek but the 4-0 triumph over Kilmarnock came at the cost of a serious knee injury to Callum Paterson and they missed the Scotland...
Hearts gave Ian Cathro his first victory in charge in some style but it came at a cost following a serious-looking injury for Callum Paterson.
Paterson scored the first goal in a 4-0 home victory over Kilmarnock before being carried off on a stretcher in the 15th minute after appearing to hurt his knee.
The timing could not have been worse as the Scotland right-back looked certain to be the subject of some serious transfer interest next month with his contract set to expire in the summer.
Ian Cathro is still looking for his first win as Hearts head coach after the Jambos blew a two-goal lead to lose 3-2 to Dundee at a blustery Dens Park.
Forward Jamie Walker scored from the spot in the third minute and defender Callum Paterson made it 2-0 three minutes after the restart which seemed to put the Gorgie side in complete control.
However, Dark Blues' captain Darren O'Dea quickly reduced the deficit in the Ladbrokes Premiership encounter with a drive before second-half substitute Paul McGowan...