Is recent curse affecting Leeds United's Pontus Jansson?

A general view of Elland Road Stadium prior to the Sky Bet Championship match between Leeds United and Brighton & Hove Albion at Elland Road on October 17, 2015 in Leeds, England.

Pontus Jansson is the latest Leeds United star to see his performance drop after signing a permanent deal.

Leeds United's Swedish defender Pontus Jansson (L) tries to block an attempt from Leicester City's Nigerian striker Kelechi Iheanacho during the English League Cup fourth round football...

Pontus Jansson's 2016/17 performances were so good that it was a no-brainer for Leeds United to sign him on a permanent basis.

This season the Sweden international has not been so sharp, and featured as part of the club's second string in the EFL Cup this week after recently being dropped from the first team.

He appears to be the latest Leeds United player to see his form dramatically dip after a successful loan was made permanent.

Three seasons ago it was Sol Bamba who became a fan favourite, after impressing and earning the captaincy after joining on loan from Palermo.

Sol Bamba (R) of Leeds United gestures to referee Tim Robinson during the Sky Bet Championship match between Leeds United and Blackburn Rovers on October 29, 2015 in Leeds, United Kingdom.

After signing permanently his form began to become more inconsistent, and at the beginning of his third season he was released.

During this time Liam Bridcutt joined on loan, and also became club captain. Fans were desperate for him to sign permanently from Sunderland the following summer, but when he did, it wasn't quite the same.

Liam Bridcutt of Leeds United uring the Sky Bet Championship match between Leeds United and Derby County at Elland Road on January 13, 2017 in Leeds, England.

Leeds' best run last season came when he was injured, and in the summer he was sold to Nottingham Forest just a year after he signed permanently.

Now it is Pontus Jansson's turn to see his form take a nosedive early on into his 'permanent' run at the club.

The Whites hope this one will see a different ending to Bamba and Bridcutt, signing the Swede to a contract extension. It may be the show of support the centre-back needed.

The reasons for all three losing form is unclear. Perhaps expectation was too high, and as Championship players they just aren't capable of year on year consistency at a high level.

There is a common denominator in each case, and that is the change of manager after their loan deals became permanent.

Jansson has had to get used to playing in front of a new goalkeeper, alongside new defensive partners, while perhaps battling his own confidence crisis.

Manager Thomas Christiansen needs to help him try and turn it around, because at his best he is a huge asset to Leeds and a Premier League standard player.

Register for HITC Sport - Daily Dispatch