Former Manchester United defender Gary Neville has urged the club's current players to make the most of pre-season under new boss David Moyes.
Moyes – who left Everton to join United as Alex Ferguson's replacement at the end of the season – will run the rule over his players for the first time over the next two months.
And Neville has advised the squad to do their best to make an early impression on the new manager.
"Every pre-season is important and every time Manchester United play a match it's important, but this time around for the players they really are starting afresh with a new manager to impress," Neville told the club's official website.
"Obviously David Moyes will have watched them previously and will know a lot about them, but it's only when you actually work closely with somebody that you understand how they work and what they're like.
"He'll be surprised by some players in terms of their level in training – watching players in training is completely different to seeing them in matches.
"Pre-season will be a showground to demonstrate to David what they can do and to try and impress him. You always want to impress the Manchester United manager, but the fact that it's a new one makes it as exciting as ever and it will be demanding and challenging for the players.
"The old manager knew the players like the back of his hand, but they don't have that comfort anymore. They need to impress again."
Manchester United announced another addition to the pre-season schedule on Tuesday, confirming that they will visit Sweden to play AIK at the Friends Arena in Stockholm on August 5.
The Swedish club will be in the middle of their season and the game will take place less than a fortnight before the Premier League opener at Swansea City on the weekend of August 17 and 18.
And Neville, who is part of the coaching staff under England boss Roy Hodgson, believes the match will give Moyes' squad a stern test.
"There is huge passion for Manchester United in Scandinavia and it'll be an occasion everyone over there is looking forward to," he added.
"Friends Arena is a wonderful stadium – I was with England for the opening game there (in November 2012) and it'll be a great atmosphere and a very competitive game.
"Swedish teams work hard and they'll be midway through their season then so they'll be in full flow and fit.
"It'll therefore be a step up for the lads in terms of fitness. I think you always want that in pre-season, though – you want that gradual improvement towards the end of it and just ahead of the Community Shield and first game of the season."
|He is not worth £60m - Liverpool´s potential Van Dijk fee concerns Nicol|
|New Real Madrid deal for Zidane is Perez´s first job|
|Perez praises James amid transfer talk|
|Victory, Sydney to meet in A-League opening round|
|Madrid, Man United yet to hold Morata talks – Perez|
|Ronaldo is angry but will stay at Madrid, says Perez|
|If we buy Mbappe, who comes out? – Perez|
|Confederations Cup Social Diary: Ronaldo strikes a pose, Chile reminisce and mum´s the word|
|I didn´t realise we´d won! - Germany U21 hero Pollersbeck|
|Confederations Cup Diary: Transfer talk gets Santos laughing and why you should never lose a Mexico|
|Better Call Saul - Atletico star hits hat-trick to send Spain into U21 Euro final|
|Garcia Report: Barcelona and Madrid´s Qatar dealings not linked to World Cup vote|
|Sevilla announce agreement for Banega return|
|I don´t play for money - Alves says farewell to Juve as Man City move looms|
|Lucas Lima denies Barcelona offer as he weighs up Santos renewal|
|Garcia Report: Conclusions of investigation into Qatar 2022 bid|
|Pollersbeck the shoot-out hero as Germany beat England for U21 Euro final spot|
|Maldini beaten in professional tennis debut|
|Santos ´will go to the end of the world´ with Portugal stars|
|Pirlo taught Vidal how to play - Borghi|
|Garcia Report: Conclusions of investigation into Russia 2018 bid|
|What is the ´Garcia Report´ and why does it matter?|
|Australian goalkeeper Vukovic earns Genk move|
|Hernandez returns to Mexico training ahead of Germany showdown|
|Sirigu leaves PSG to join Torino|
|Guerreiro out, Silva major doubt for Portugal´s semi-final clash|
|FIFA releases full ´Garcia Report´ into World Cup bidding process after Bild leak|
|Leicester midfielder Mendy wants Bordeaux move|
|Ronaldo, Morata and Mbappe futures discussed by Del Bosque|
|Banega ´very close´ to Sevilla return, agent reveals|
|Mexico about more than Hernandez, warns Mustafi|
|Premier League is right for Real Madrid star Ronaldo, says Meireles|
|Milan trying to close Biglia deal amid Premier League interest, agent claims|
|Germany´s Can not scared of Ronaldo|
|Chile are ready to counter Ronaldo – Pizzi|
|Ginola advises Mbappe to stay at Monaco|
|Calhanoglu waiting for ´final talks´ as AC Milan move nears|
|Sanchez not distracted by transfer talk, says Chile coach Pizzi|
|Allegri hails ´future Juventus leader´ Bonucci|
|Has Morata´s wife dropped a hint of Man Utd move?|
|Stats amazing - Can marvels at Liverpool newcomer Salah|
|FIFA response expected after Bild reveal Qatar World Cup report ´leak´|
|Shanghai Shenhua seek to tie down Guarin and Moreno|
|Germany v Mexico: Werner´s eyes on the prize as El Tri aim to start on time|
|Asensio praises Donnarumma amid Real Madrid links|
|Giggs: Rooney could stay at Manchester United|
|WATCH: McCollum guesses Atletico star Griezmann´s NBA impressions|
|Suarez wants Arsenal´s Bellerin at Barcelona|
|Montella hopeful Donnarumma will stay at Milan|
|Confederations Cup Diary: Ronaldo gold for Silva, don´t touch the dial in Chile|
|Madrid allow Llorente to leave for La Real|
|Anything Drogba can do - Hazard invests in new NASL franchise|
|Lyon to keep Lacazette unless replacement bought, says president Aulas|
|Milan goalkeeper Donnarumma apologises for social media ´uproar´|
|Lyon snap up €10m Chelsea forward Traore|
|Van Aanholt excited to learn new ideas from Palace boss De Boer|
|FIFA referees chief praises VAR but sees work to be done|
|You´re a wizard, Hummels: Bayern defender celebrates Harry Potter anniversary|
|Kolarov keen on Lazio return|
|Fiorentina put up for sale by Della Valle family|
|Russian World Cup chief labels doping claims ´made-up news´|
|Like father, like son: Germain hoping to write his own ´beautiful´ Marseille story|
|New Nantes coach Ranieri wants to ´forget´ Leicester|
|Watford new boy Hughes: Premier League too hard to turn down|
|Confederations Cup Social Diary: No rest for Ronaldo, Trapp still smiling and FIFA honours Marc-Vivi|
|Parish surprised by Allardyce´s Palace exit but excited by De Boer arrival|
|No stepping stone: De Boer hopes to see out three-year Crystal Palace deal|
|Dutch courage needed? De Boer follows likes of Van Gaal & Koeman to Premier League|
|Frank de Boer appointed new Palace boss|
|I´m in love with Italy - Former AC Milan star Pato open to Inter switch|
|Portugal v Chile: Pizzi ready for tough challenge as champions of Europe and South America clash|
|De Boer waits in the Eagles´ wings: Can the Dutchman improve on Allardyce, Pardew and Pulis?|
|Help me score 10 goals! - Guangzhou defender Feng sets out Paulinho´s Barcelona move conditions|
|Man Utd must wait a year for Talisca, say Besiktas|
|Vettel v Hamilton: Famous sporting squabbles|
|Jose Mourinho pays tribute after the death of his father|
|Cristiano Ronaldo needs time ´to reflect´ on Real Madrid future|
|Draxler, Kimmich and Can lavish praise on ton-up Low|
|Kalac: Donnarumma´s head turned by greedy Raiola|
|Bayern Munich target Brandt staying at Bayer Leverkusen|
|PSG´s Verratti would be perfect fit at Barcelona – Garcia|
|Portland Timbers 2 Seattle Sounders 2: Dempsey scores stoppage-time equaliser to deny hosts|
|Raiola says Donnarumma will meet with Milan amid confusion|
|Cahill: Once I lead, the others follow|
|Pogba surprised by Mbappe, Dembele talent|
|Donnarumma claims he was hacked over Milan renewal post|