The 10 worst transfers made by Scottish Premiership clubs this season - including Celtic quartet and major Rangers flops

It's been an enthralling season in the Scottish Premiership so far, and with just five games left to play, there are plenty of storylines still to be written.

Can Hearts break the Old Firm’s dominance? One point clear at the top of the table, Rangers and Celtic are still breathing down their neck as we approach the highly anticipated split fixtures. Motherwell and Hibs are still competing for a top-four spot, while St Mirren, Aberdeen, Kilmarnock, and Dundee are all battling to keep their heads above water to avoid a relegation play-off.

There was plenty of excitement across the division when an influx of new names arrived from across the globe. While many of them did work out (as seen here), there were some who can be categorised as major flops. But what were the biggest transfer mistakes made by Scottish Premiership clubs this season?

Here, we look at the 10 worst transfers made Scottish Premiership this season. Do you agree with our picks?

Signed on a season-long loan deal from Bologna, the Swedish international was Aberdeen's big summer signing but failed to live up to expectations and left after just six months as the club terminated his loan. A complete mismatch between his technical style and the team's struggles under former boss Jimmy Thelin, Karlsson moved to Dutch outfit FC Utrecht in January after failing to truly make his mark at Pittodrie. | SNS Group Photo: SNS Group

Rangers' first signing of the summer had endured a difficult 18 months prior to his loan move to Ibrox, but it was hoped he'd recapture the form that made Bournemouth pay £7million for him back in 2023. However, outside of a last-minute goal against Livingston, Aarons has made next to no impact and hasn't started a league game in almost four months. He looks destined to return to his parent club in the summer. | SNS Group

A long-term target for Celtic, the club eventually agreed to stump up a fee of £5million to Royal Antwerp for his services in the final days of the summer transfer window. The DR Congo winger made his debut in an underwhelming 0-0 draw with Rangers, and he's barely been seen since. Has yet to complete 90 minutes for Celtic, and hasn't played just one this year in a 2-0 win over Auchinleck Talbot in the Scottish Cup. | SNS Group

The Hearts recruitment team have not had many misses this season; however, the signing of Borchgrevink may be chalked down as an error at the end of the campaign. While not entirely his fault, a series of niggling injuries has curtailed his impact. Despite being fit for several weeks now, he's not featured since coming off the bench late in a 2-1 win over Celtic in November, and has played just 195 minutes of league football this season. | SNS Group