Celtic's squad underwent some major surgery at Parkhead during the previous summer transfer window.

Not only did the Hoops boss Ange Postecoglou bring a significant number of new players in during this period, but they also waved goodbye to some familiar faces as well.

Players like Scott Brown and Olivier Ntcham left on free transfers, whereas others left for considerable amounts of money such as Odsonne Edouard and Kristoffer Ajer.

This significant overhaul of the squad seems to have done the trick for the Bhoys as Ange Postecoglou's side are on the verge of securing the SPFL title having won 28 of their 36 league games.

Looking ahead to the next summer transfer window, two current players in Celtic's ranks that we feel should be on their way out this time around are Boli Bolingoli and Mikey Johnston.

With the left-back only making two appearances for the Hoops this season and spending some time away from the squad to train on his own, this doesn't make him likely to be in Postecoglou's plans for the future.

Slammed for his "appalling" behaviour when he broke the government's protocols surrounding the global pandemic back in 2020 by former Bhoys manager Neil Lennon, this may well explain why he's not been in the frame for most of this current season.

Taking this into account, if the club can cash in on him this summer before his contract runs out in the summer of 2023, this would be the best option for them from a financial point of view.

As for Johnston, while he's had more action than the full-back this season by making 20 appearances across all competitions, he's only started three of the 11 league games he's appeared in.

His last appearance in the league came back in January during Celtic's 2-0 win over Hibernian.

In terms of his attacking output, the winger has failed to register even one goal and only provided one assist, which, given the hefty number of goals the Hoops have scored this season, is rather dismal.

This was backed up when the 23-year-old's crossing ability was described as "pathetic" by Willie Miller during the Scottish League Cup final back in December.

Moving forward, if the 56-year-old Hoops boss is considering another big summer overhaul, getting rid of this disaster duo that are bleeding the club dry should be at the top of his priority list.

In other news: Time to go: Postecoglou must finally axe Celtic's "daft" £14k-p/w "walking joke" - opinion