However, the Leicester lock says he has no regrets about going under the knife to sort out his long-term shoulder problem, and has set his sights on gaining Lions selection for Australia in 2025.
The 23-year-old took the big decision to sit out the end of Leicester Tigers' Premiership campaign in order to fix a shoulder problem which he reveals has hindered him on the field for club and country.
It means that, having become such an integral member of the pack in recent times with his ability to play second row and flanker, he will be unable to add to his 23 caps by flying with the squad for the June and July Tests with Japan and New Zealand.
Chessum, who had his surgery after last month's game with Bristol, said: "It was an ongoing issue and something that had been bugging me for a while. So I finally made up my mind to have surgery. There's never a good time for this stuff but I had conversations with various people and decided it was time to get it sorted and on the mend.
"The nature of the sport means there's only so long you can go on playing at 80 per cent.
This story is from the {{IssueName}} edition of {{MagazineName}}.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber ? Sign In
This story is from the {{IssueName}} edition of {{MagazineName}}.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Sign In
Ten-try Chiefs show Pirates no mercy
TEN-TRY Exeter inflicted the backlash from six successive defeats in their worst ever start to a Premiership season on a young Pirates side suffering their own problems in the Championship.
South America look to keep on building
AS Sebastián Piñeyrúa's historic six-year term as President of Rugby Sudamérica comes to an end, his replacement shows no signs of slowing down.
Scarratt excited by new pathway
ENGLAND centurion Emily Scarratt is delighted with the new women's BUCS programme which aims to provide a smoother pathway for young aspiring female players.
Baxter: I want to make things better
ROB Baxter will not be walking away from Exeter, the only club still looking for a Premiership victory this season, believing he can get the Chiefs back on track and he cannot bear the thought of anyone else doing the job.
Pearce walks in his father's footsteps
PADDY Pearce is living a dream after emulating his father and great-uncle by playing for the club he supported as a boy, Bristol.
New England group will cause uncertainty
SO JUST when we thought that everything was getting sorted between the RFU, the clubs and players, a number of new agreements and a new group raises its head.
Galthie turns his sights to the future
FRANCE head coach Fabien Galthie offered the clearest hint yet of Les Bleus' future on Wednesday, when he released 19 players back F to their clubs for the ninth and final Top 14 round before the international break.
Gilmore has tightened up our defence - Anderson
CAMERON Anderson has hailed the impact made by defence coach Jason Gilmore, below, since he arrived at The Stoop in the summer.
Ampthill given 11-try lesson in class from Bath
BATH secured a thumping away success in the opening match of their Premiership Rugby Cup campaign against Ampthill at Dillingham Park.
New faces take the plaudits for Saints
NORTHAMPTON handed out a thorough lesson to a tame Leicester team in this one-sided East Midlands derby to launch the Premiership Cup.
