Celtic reportedly wanted Anderlecht midfielder Adrien Trebel this summer.
Celtic academy product McCart has joined Inverness.
Moussa Dembele scored in Celtic’s win against Graeme Murty’s Glasgow Rangers in the Old Firm derby on Sunday.
Glasgow Rangers striker Alfredo Morelos missed a good late chance against Brendan Rodgers’s Celtic at Ibrox in the Old Firm derby.
Tony Watt is a free agent right now and the former Celtic striker has been training with Scottish Premiership rivals Aberdeen.
The two Scotsmen were teammates for three seasons as youngsters at Celtic before Watt moved on to Standard Liege.
The current free-agent has lifted the lid on how his own immaturity ironically led to his inclusion Celtic's first team match day squad.
The Scotland international stole the headlines with a stunning winner in Celtic's world famous 2-1 victory over Barcelona in 2012.
Watt joined Celtic seven years ago and has had six different clubs since leaving Parkhead in 2014.
Tony Watt praises former Celtic mate and Saturday's hat-trick hero James Forrest on Twitter.
Signing on loan to Hearts from Charlton Athletic represents an opportunity for Tony Watt to kill off bad accusations from an image problem, first formed in Scotland.
Charlton Athletic's 22-year-old is reportedly due to move back to the Scottish Premiership this season.
Charlton boss Bob Peeters has confirmed a deal is close to sign former Celtic striker Tony Watt.