Bristol City supporters will likely be glad to see the back of the 2020/21 campaign. 

There were high hopes when the Robins raced out of the blocks under Dean Holden but things didn't work out for him and Nigel Pearson's arrival hasn't quite had the desired effect.

The summer looks set to be a pivotal period for the South West club and a busy one – with a replacement for CEO Mark Ashton needed, Pearson's future to be decided, and a significant number of senior players out of contract.

City's poor recent form highlights the work that needs to be done at the club but there are still a fair few quality players in the squad, particularly some of the younger ones that look to have a bright future.

With that in mind, we've ranked the 10 Robins players who've had the biggest market value increases since their debuts, according to Transfermarkt...

We start our list with City academy product and current second-string goalkeeper Max O'Leary.

The Bath-born 24-year-old looks like a player with a very bright future and has filled in very effectively for Dan Bentley when called upon this season.

O'Leary made his debut in a FA Cup Third Round tie with West Bromwich Albion in January 2016, helping the Robins claim a 2-2 draw.

According to Transfermarkt, the keeper's value has gone up £540,000 since that point and is likely to continue rising as he gets more opportunities.

With a lot of time left on his current deal, it seems likely he'll get those at Ashton Gate.

One of the few bright spots this season for City has been the emergence of young players such as Tyreeq Bakinson.

The midfielder joined the Robins from Luton Town in 2017 and after a few spells out on loan, has become a regular fixture in the side during 2020/21.

Bakinson made his debut in City's 4-1 victory against Crystal Palace in October 2017 – part of their run to the EFL Cup semi-final.

According to Transfermarkt, his value has risen £810,000 since that debut and given he's just 22, you feel a lot is still to come from the City man!

Jamie Paterson could be on the move for nothing this summer as his contract is set to expire at the end of the season.

One of the remaining key figures from the Lee Johnson era, the playmaker has been synonymous with the Robins over the past few years.

Paterson signed from Nottingham Forest in August 2016 and made his debut in the 1-1 draw against Derby County in September that year.

According to Transfermarkt, his value has increased by £900,000 since that game.

Unfortunately for the Robins, it doesn't seem as though they're going to get any sort of compensation if he leaves this summer.

2020/21 has been a breakthrough season for Antoine Semenyo and the forward appears to be attracting a fair bit of attention, with Crystal Palace and West Ham United among the clubs linked.

The 21-year-old is a product of the Robins academy and made his City debut in the 3-2 defeat to Sheffield United on the final day of the 2017/18 Championship season.

Semenyo has come on leaps and bounds as a player since, while, according to Transfermarkt, his value has increased by £1.17m in that period.

Robins supporters will be hoping that the exciting forward can continue to develop at Ashton Gate, rather than elsewhere.

Han-Noah Massengo is another young player that has impressed for City this term, in what has been a disappointing season.

The Robins spent big to bring the French teenager to Ashton Gate in 2019, signing him from Ligue 1 side Monaco.

The 19-year-old has had his ups and downs since but the last few months have shown just what a bright talent he is.

Massengo made his debut in the EFL Cup tie against QPR in September 2019, which the Robins lost in a penalty shootout.

According to Transfermarkt, the midfielder's value has gone up £1.35m since – hopefully, that's just the start.

Andreas Weimann's energy and dynamism in the final third has been sorely missed since his injury early on in the season.

City fans will look forward to his return next season and perhaps even appreciate him more than they did previously.

Weimann joined from Derby County in 2018 and made his debut in the 1-1 draw with Nottingham Forest on the opening weekend of the 2018/19 Championship season.

According to Transfermakrt, the Austrian forward's value has gone up £1.35m since.

As we've seen in his absence this term, he's worth a lot to this City squad.

Injuries have hampered Callum O'Dowda's time at Ashton Gate but having joined as a 20-year-old winger five years ago it's no surprise to see him high up on this list.

The talent is clearly there but City fans will likely feel they've not seen enough of it over the past few years.

O'Dowda made his debut for the Robins in their 2-1 win against Wigan Athletic on the opening day of the 2016/17 Championship season.

According to Transfermarkt, his value has risen £1.44m since – the Ashton Gate faithful will be hoping to see more on him on the pitch next term.

The highest-placed City academy product on this list, the 2020/21 campaign has seen Zak Vyner really establish himself in the first team.

The 23-year-old defender has had a number of loan moves but it's hard to see the Robins sending him away again, such is his importance to the squad.

Vyner made his debut all the way back in February 2016 as City beat MK Dons 2-0 with Jonathan Kodjia at the double.

According to Transfermarkt, his value has risen by £1.80m since – though as a homegrown talent he'll certainly be worth much more than that to the fans.

There is a very strong argument to be made that Dan Bentley has been the Robins' Player of the Season in 2020/21.

It's not worth considering where City could be without him, though it would likely be much, much closer to the bottom three.

Bentley joined from Brentford in the summer of 2019 and made his debut on the opening day of the season in the 3-1 defeat to Leeds United.

According to Transfermarkt, the English shot-stopper's value has increased by £2.25m since that defeat to the Whites.

He's certainly proved his worth for City over the past few seasons.

At number one on our list is City defender and former Chelsea academy player Jay Dasilva.

The left-back was still a Chelsea player when he made his debut for the Robins, having signed on loan for the 2018/19 season.

Dasilva's debut came in a 1-0 EFL Cup defeat to Plymouth Argyle in 2018, with Yann Songo'o scoring the only goal of the game.

Now a permanent City player, the 22-year-old's value has increased by £2.48m since his debut for the South West club – the most of any current player.

Robins fans will be hoping he can continue to develop when he returns from injury.