Celtic winger James Forrest has agreed a new deal, keeping him at the club next season.
Rangers captain James Tavernier has announced he will leave the club at the end of the season, after 11 years at Ibrox.
"There's certainly an edge to this one because of what's at stake for both clubs."
Hearts head coach Derek McInnes believes Edinburgh rivals Hibs could be their "hardest game" as they look to clinch the Scottish Premiership title.
The latest news, rumours and gossip from around Scottish football...
Five games. Three teams. One trophy.
Second-half goals from Reece McAlear and Ruari Paton sealed St Johnstone's instant return to the William Hill Premiership at East End Park.
James Tavernier has told Sky Sports News he will "never shut the door " on a new deal at Rangers.
Celtic manager Martin O’Neill will face his former captain, Neil Lennon, in the Scottish Cup final after the Hoops eventually beat League Cup holders St Mirren 6-2 after extra time in the semi-finals.
Dunfermline Athletic moved one step closer to a first Scottish Cup triumph since 1968 with a dramatic penalty shootout victory over bitter rivals Falkirk in the semi-finals at Hampden Park.
Derek McInnes believes Hearts’ warm-weather training in Spain is as an opportunity to enjoy some “calm” before the storm of an Edinburgh derby critical to their hopes of winning the Scottish Premiership title.
Rangers midfielder Connor Barron is targeting a “perfect” end to the season by winning the Scottish Premiership title and making Steve Clarke’s Scotland squad for this summer’s World Cup.
"I don't think Celtic can win it. It's out of Hearts and Rangers."
Rangers produced a stunning comeback at Falkirk to remain firmly in the Scottish Premiership title race with five games to play.
Celtic kept the pressure on Scottish Premiership leaders Hearts with a 1-0 win over St Mirren.
Hearts came from behind to beat Motherwell 3-1 on Saturday, maintaining their three-point lead at the top of the Scottish Premiership.
Long-term absentee Alistair Johnston is back in training with Celtic as Martin O'Neill revealed injured loan defender Julian Araujo could have played his last game for the club.
Kevin Nisbet’s brace earned Aberdeen a much-needed Scottish Premiership victory over 10-man Hibernian to give Stephen Robinson his first win as head coach.
Ryan Naderi’s season could be over after Danny Röhl revealed a "serious" injury and he could be without other key players for Sunday's Scottish Premiership trip to Falkirk, live on Sky Sports.
Kelle Roos saved a stoppage-time penalty from Dundee striker Joe Westley to earn Kilmarnock a potentially precious point in their battle for survival.