Celtic manager Ange Postecoglou has given a fresh injury update on the status of January signing Alistair Johnston.

The Canadian international, a consistent starter since his arrival from CF Montreal, suffered a leg injury after competing with Rangers defender Borna Barasic in the Scottish Cup semi-final at Hampden last week.

Postecoglou said of the right-back: "He got a significant knock. We will see. There is still a chance he will be available before the end of the season but it will be a week-by-week thing and we will see how he goes.".

The Australian also gave updates on timescales for other injured players, such as defenders Cameron Carter-Vickers and Stephen Welsh, as well as winger James Forrest.

He said: "Cameron will be out until the start of next season and James Forrest is probably a week away.

"The only other new one is Stephen Welsh who picked up a knock in training. Everyone else is good to go."

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Meanwhile, former Celtic defender Kieran Tierney is a transfer target for Aston Villa this summer, according to reports.

The Scotland internationalist, who played 170 times for the Glasgow side, has previously been linked with high-flying Newcastle United in recent months, but according to The Telegraph there is interest from the Midlands.

Tierney made his Celtic debut in 2015, coming on as a substitute against Dundee at Dens Park.

The fan-favourite would go on to win eight domestic pieces of silverware with the Hoops, including four league titles, two Scottish Cups and a further two Scottish League Cups.

He left the Parkhead club in 2019 for North London side Arsenal for a reported £25million, breaking the record sale for Celtic in the process.

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Despite making 119 appearances for Mikel Arteta’s Gunners side, he has only made one start this calendar year, with Ukrainian defender Oleksandr Zinchenko being preferred in the left-back position.

If Tierney was to sign with the Villains, he would be reunited with the Arsenal manager that signed him to the club, as Spaniard Unai Emery is now in charge after replacing ex-Rangers manager Steven Gerrard at the helm of the Birmingham club.