By Alex Stevens

Scott Sinclair has signed a four-year contract to finally become a Celtic player in a deal potentially worth £4.5 million to Aston Villa, according to a report.

The Sun claim the attacking midfielder passed his medical in Glasgow on Saturday and has now put pen to paper after a prolonged chase by boss Brendan Rodgers.

It is said the Hoops are paying at least £3million up front with another seven-figure amount agreed for possible add ons.

Rodgers was keen to include winger Sinclair in his squad for Sunday’s Scottish Premiership opener against Hearts at Tynecastle.

But it is unclear whether the transfer has been sealed in time for the 27-year-old to make his debut in the league curtainraiser.

Talking at a club press conference on Friday, Rodgers said he hoped to sign Sinclair by Sunday night.

“There’s no smoke without fire and there’s been a lot of smoke,” said Rodgers, as quoted by the BBC. “Scott’s a player I know well. I’d hope to sign a player before the weekend.

“I had him in at Chelsea when he was 16 years of age out of Bristol Rovers, I know him probably as well as anyone and I know his qualities.

“But there is a number of players that we are looking at and all of them we hope can improve the squad.

“We’d like to get in at least one new player before the deadline.”

The Bhoys have already completed deals for Moussa Dembele, Kolo Toure and Kristoffer Ajer this summer ahead of the new Scottish Premier League season.

Rodgers has been desperate to set up a third reunion with the former England under-21 international after working with him at Chelsea and Swansea.

The Villains decided to buy Sinclair for £2.5million last summer, and in 27 Premier League appearances, Sinclair scored two goals.

Celtic have won the Premiership title for the past five seasons without the presence of bitter rivals Rangers.

But, with the Glasgow club making a return to the top-tier Rodgers will need to produce his best to fend off any competition from the Ibrox club.

In other Celtic news, a league-winning striker has backed Rangers to beat Celtic to the title.