I'm going to sign off. Remember to watch Sportscene at 19:30 on BBC Two Scotland.

Individual highlights edits of yesterday's Premiership matches will be available on the BBC Sport website from 18:00.

And we'll return with more live coverage on Tuesday, as the second round of the Scottish League Cup starts with five ties.

Tom English
BBC Sport Scotland

"For the champions, it was a hard-fought but deserved winning start to their title defence."

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Celtic manager Brendan Rodgers added he wants to add "at least another two" players to his squad before the transfer window closes.

Celtic manager Brendan Rodgers on Radio Scotland: "We had to show mentality and character in the second half. We eventually break through in a counter attack. Delighted for [Scott Sinclair]. He's made a big choice to come here."

Andrew Southwick
BBC Scotland

"Aberdeen were dominating possession without really testing Saints goalkeeper Mannus."

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Celtic scorer Scott Sinclair on Radio Scotland: "It is an amazing feeling. I didn't think I would be involved with the squad but the manager said I was fit. It was great I could come in and score the winner.

"It all happened so fast. I came up Friday night, I only had three hours' sleep. But I did the scans and bits and pieces and I have made the squad. This is why I came to Celtic - to play games, score goals and start enjoying it again. Hopefully it can continue."

Hearts head coach Robbie Neilson on Radio Scotland: "Performance was great. Disappointed with the result but we have to move on. I thought there were a lot of inconsistent decisions today. They got some, we got some. It's just one of those days."

The first round of fixtures in this season's Scottish Premiership is now complete.

Today we've had our first top-flight goalless draw in Perth and seen last season's winners Celtic get their first three points on the board.

Reigning champions Celtic open their Scottish Premiership title defence with a hard-fought win at Tynecastle.

Image source, SNS

Moussa Dembele booked for Celtic.

Four minutes of stoppage time begin.

Craig Gordon does well to block Don Cowie's shot for Hearts.

A Tom Rogic shot is deflected wide of the Hearts goal.

Celtic's Saidy Janko comes on for Leigh Griffiths.

Robbie Muirhead is almost in right in front of the Celtic goal but the Hearts substitute loses his footing.

Conor Sammon makes way for Prince Buaben in the hosts' line-up.

Celtic captain Scott Brown booked for dissent.

Booking number seven for Hearts - Don Cowie cautioned for clattering into Kieran Tierney.

Conor Sammon gets away on the right for Hearts but takes a touch too wide and his eventual shot is easily saved.