Aberdeen's season ended on a low note as they lost 4-0 at home to Ross County, while Hearts drew 2-2 with St Johnstone at Tynecastle.
Swansea's Stephen Kingsley and Derby's Craig Bryson are among four players called into the Scotland squad.
Aberdeen manager Derek McInnes paid tribute to his side despite the 4-0 defeat to Ross County at Pittodrie.
Motherwell have ensured a fifth-placed finish in the Scottish Premiership with a 3-1 win at Ross County.
Hamilton and Partick preserved their Scottish Premiership status with away wins but Kilmarnock face a play-off.
Aberdeen shrugged off the disappointment of seeing Celtic win at Hearts to beat Motherwell as Kilmarnock claimed a vital victory at Hamilton.
Four players from Aberdeen and three from Dundee have been included in PFA Scotland's Premiership team of the year.
Ross County forward Alex Schalk has penned a new one-year deal with the club following an impressive first season in Scotland.
Jim McIntyre, Peret Houston, Mark Warburton and Jim McInally have been nominated for the PFA Manager of the Year award
Celtic moved nine points clear at the top of the Scottish Premiership following a 1-1 draw with Ross County at Parkhead.
Ronny Deila has urged his Celtic players to have fun in the remaining four games of the season.
Ross County's ticket sales were thrown into chaos after a technical error wiped out the Scottish Premiership club's website.
Celtic host Ross County in their first post-split match on April 24, two days after title rivals Aberdeen take on St Johnstone.
Alex Schalk scored the only goal as Ross County beat Partick to make certain of a top-half finish.
Dundee United's quest for Premiership survival is lifted by a win at St Johnstone while Kilmarnock are held at Partick.
Aberdeen lost ground on league leaders Celtic after Motherwell came from behind to win 2-1 at Fir Park.
League Cup winners Ross County grabbed a 1-1 draw at St Johnstone in the Ladbrokes Scottish Premiership.
Scottish Cup holders Inverness CT were dumped out of the competition as they lost 2-1 to Hibernian.
Ross County boss Jim McIntyre and chairman Roy MacGregor insist the club can gain more success after the League Cup win.
Alex Schalk scored in the last minute to give Ross County a 2-1 victory over Hibernian in the Scottish League Cup final.