The Sweden international starred for United last season, making 21 appearances across all competitions and famously equalised in the Champions League Round of 16 tie at Atletico Madrid in February.
Like many of his teammates, including Cristiano Ronaldo and Scott McTominay, Elanga has has kept his followers updated on his progress ahead of the new season.
As part of a strength and conditioning programme with fitness coach Tom Joyce, Elanga has been working on his box jump to improve his explosive power.
Earlier in June, during a training session before pre-season officially began, he managed to post a personal best jump of 63 inches (5ft 2 in).
The jump was just four inches below the current Guinness World Record for the highest standing jump set last year by American personal trainer Chris Spell who admitted to doing six months of training to break the record.
You wouldn't bet against Elanga breaking the record in the future due to his thirst for competition, as shown during last season's breakout campaign.
Last month he told Manchester United's official website that becoming the best requires competing with the best.
"Competition is healthy, especially in the environment I am in," said the 20-year-old Swede.
"I feel like everyone is pushing each other to become the best version of themselves and it shows, even in training.
"Competition is something you need in a big team like Manchester United. If you want to become the best, you've got to compete with the best."
Elanga is preparing himself for a first season under the gaze of new manager Erik ten Hag and the forward knows all about the qualities the Dutchman will bring to Old Trafford.
Elanga said: "Erik's got amazing records in Europe; he has done very well with Ajax. He's a manager who I'm really, really looking forward to working under and I know he can bring a lot of his leadership and qualities to this team. It will be good.
"We know we haven't had the best of seasons this season, but, with more work in pre-season and the new manager coming in, [next season] should be really, really good."