Motherwell's David Turnbull will have a Celtic medical on Friday and sign a four-year deal after choosing the Scottish champions over Norwich City.
Norwich were favourites to capture the midfielder due to Celtic pulling out as both parties failed to agree terms.
But despite the 19-year-old travelling to Carrow Road on Wednesday, BBC Scotland has learned the Glasgow side have made a new and successful offer.
Both clubs have had fees worth £3.25m accepted by the Fir Park board.
"We've identified David for quite a while. He's here in the building and hopefully we'll have a brief chat with him before he goes off to do his medical today," Celtic manager Neil Lennon told Sky Sports.
"We like the younger players. We have had great success with developing players over the last 10 or 15 years.
"He had a sensational first season with Motherwell, we were very impressed with him. We're hoping that things can get concluded today and we can announce him later on."
The deal between Celtic and the Motherwell starlet seemed dead in the water on Tuesday, with the treble treble winners stepping back as the Premier League newcomers swooped in.
Prior to that, initial stalled talks prompted Celtic to release a statement, saying they would "move on" if the player would not accept their "magnificent offer".
However, despite having the chance of signing an attractive deal with Norwich this week, Turnbull has decided his footballing future is at Celtic Park.
Last season, the Fir Park academy graduate scored 15 goals in his breakthrough campaign, netting a third of the Scottish Premiership club's goals.