With everything that has gone on both on and off the pitch in the past few years, it hasn't exactly been the most enjoyable time to be a Bolton Wanderers fan.

But while uncertainty about the club's long term future has largely dominated the headlines, battles against relegation from the Championship - which have been unsuccessful on more than one occasion - haven't made the football side of things easy to bare either.

While those off pitch problems will have had to play their part in that, some off the fault for that drop into League One has to be laid at the feet of the club's players, and Bolton have certainly had a number who have failed to impress during their time at the University of Bolton Stadium.

Here, we take a look at six players who may well have left Wanderers fans particularly disappointed in recent years.

Having joined Bolton in 2015 with well over 200 Serie A appearances under his belt from an 11-year spell at Cagliari, Pisano showed little of that top flight ability during his time in the Championship with the Trotters.

He made just three league appearances for the club before returning to Italy on loan with Avellino at the start of 2016, and would not play for Wanderers again, as they were relegated to League One at the end of that season.

Like Pisano, Casado joined Bolton early in the 2015/16 season with plenty of experience of one of Europe's big five leagues under his belt.

The Spaniard had 118 La Liga appearances to his name when he arrived at Bolton on a one-year deal in August 2015. But after just nine appearances for Wanderers, Casado's time at the club would be cut short just four months later, when his contract was terminated by mutual consent the following January.

Kirchhoff joined Bolton on a short-term deal in February 2018, having been without a club since his from then-Premier League Sunderland at the end of previous season.

With Bundesliga experience with Bayern Munich and Schalke also under his belt, much may have been expected of the German youth international, but he would leave the club at the end of that same season, having started just two games for Wanderers as they avoided relegation from the Championship on the final day of the season.

Having joined Bolton on a loan-to-buy deal late in the 2018 summer transfer window, much of Doidge's time at the club was dominated by the row with Forest Green about whether the Trotters had paid the fee to make that move permanent, although the striker didn't exactly shine on the pitch for Wanderers either.

After scoring 20 goals in League Two the season before for Forest Green, Doidge found the net just once in 17 appearances for Phil Parkinson's side, before returning to The New Lawn in January after Bolton failed to make his move permanent, where he would score ten more goals before moving to Hibernian in the summer.

After a prolific couple of years with Walsall in League One, Oztumer made the step up to the Championship with Bolton at the start of last season, although he too struggled to adapt to his new surroundings.

The attacker failed to score or assist a single goal in 17 league appearances last season - his only goal for the club coming in an FA Cup win over former club Walsall - before he left the club after handing his notice in last August, joining Charlton just a day after his departure from Bolton had been confirmed.

Another summer signing who failed to make an impact as Bolton plummeted out of the Championship last season, Donaldson was a player the club's fans never really took to.

Those frustrations with the veteran striker are perhaps understandable, given he found the net just twice in 34 appearances in all competitions for the Trotters, before dropping down not one but two levels in the summer to join League Two Bradford following the expiry of his contract with Wanderers.