Aberdeen equalled their best start to a league campaign as they won 2-0 at Partick on Saturday, while Hearts lost 3-2 at Hamilton.
Aberdeen have signed Northern Ireland right-back Ryan McLaughlin on loan from Liverpool, subject to international clearance.
Scottish League Cup holders Celtic will play Raith Rovers at home in the third round of the competition.
The SPFL mascot race ends in controversy with the winner being a guest entry who didn't belong to a football club!
Aberdeen striker Lawrence Shankland has joined St Mirren on loan until the end of the season.
Hearts maintained their perfect start to the season with a comfortable 3-0 win over Partick Thistle at Tynecastle.
Andy Walker believes any realistic challenge to Celtic's quest for a fifth successive title will come from Aberdeen.
Hearts maintained top spot in the Scottish Premiership with a 2-1 victory at Ross County on Saturday, while Aberdeen won too.
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