England U20s make two changes for tomorrow's IRB Junior World Championship semi final against South Africa.
Gloucester Rugby backs Henry Trinder and Charlie Sharples start at centre and wing respectively whilst Shaun Knight and Dave Lewis are named amongst the replacements.
However, Sale Sharks lock James Gaskell takes over from Gloucester's Dan Williams in the second row against South Africa in Tokyo (11am BST).
The only other change to the matchday squad sees wing Jack Cobden replace his Leicester Tigers teammate Greig Tonks on the bench.
Head coach Mark Mapletoft admitted he had some 'tough calls' to make after England's 52-7 win over Samoa in the final Pool B match, particularly among the forwards.
London Irish James Clark starts a second Under 20 game in succession for the first time, while Bath flanker Josh Ovens has pushed hard for inclusion.
"Everybody's had an opportunity to play and we feel that this side is the strongest one we can put out for this game," said Mapletoft.
"James Gaskell comes back and that's hard on Dan Williams, who's done well, but James has had an outstanding season for us."
"There are a number of other tough calls in areas like the back row where Josh Ovens has done well all season."
"James Clark produced a good strong performance on Saturday, scrummed well, out lineout was good and South Africa will be a big threat in the tight.
"It's another tough call but Jamie George sitting on the bench gives us a good option in the second half."
"South Africa will pose us a massive physical challenge and their game is very strong at the moment if you look at the World Cup, the Sevens, Super 14. They've been very successful in age group world cups in the time I've been involved."
"They've got good halfbacks, they're big and strong in the front row, lots of quality and good players. Even at 20-0 down in their last game against France they didn't give up and ended up winning the game comfortably."
"We know we've stepped up and moved through the gears nicely. Now we've got to step up again and move it on another notch and it would be great to be able to do that tomorrow night."
England Under 20
15 Tom Homer (London Irish); 14 George Lowe (Harlequins), 13 Henry Trinder (Gloucester Rugby), 12 Luke Eves (Bristol Rugby), 11 Charlie Sharples (Gloucester Rugby); 10 Rory Clegg (Newcastle Falcons), 9 Ben Youngs (Leicester Tigers); 1 Ben Moon (Exeter Chiefs), 2 James Clark (London Irish), 3 Bob Baker (London Wasps); 4 Graham Kitchener (Worcester Warriors), 5 James Gaskell (Sale Sharks); 6 Courtney Lawes (Northampton Saints), 7 Calum Clark (Leeds Carnegie, captain), 8 Carl Fearns (Sale Sharks)
16 Jamie George (Saracens), 17 Shaun Knight (Gloucester Rugby), 18 Dan Williams (Gloucester Rugby), 19 Josh Ovens (Bath Rugby), 20 Dave Lewis (Gloucester Rugby) , 21 Rob Miller (Newcastle Falcons), 22 Jack Cobden (Leicester Tigers)
Ben Morgan, Tom Johnson and Henry Thomas spoke to Russ Hargreaves this week as they were about to do some DIY work at Chobham RFC as part of Natwest Rugby Force. On the agenda for discussion were, of course, England's forthcoming games but also the trio's painting prowess.
With ADEY Professional Heating Solutions now unveiled as Gloucester Rugby's new main sponsor from July 2013, managing Director Kelvin Stevens spoke to the club website about the reasons for getting involved with the club.
Gloucester Rugby CEO Stephen Vaughan was delighted to introduce ADEY Professional Heating Solutions as the club's new main sponsor this week. He spoke to the club website about the exciting new partnership.
Although understandably disappointed following the 40-39 defeat at Exeter, Freddie Burns thought that both teams fully contributed to a great spectacle but that a couple of refereeing decisions were key to the outcome.
Gloucester's final game of the season ended in a narrow defeat in a pulsating encounter at the Exeter Chiefs. The Cherry and Whites went down 40-39, as Gareth Steenson's dramatic late penalty meant that the end of Director of Rugby Nigel Davies' first season in charge ended in defeat. Davies spoke to the official website in the Devon sunshine.
Dave Lewis was in a tough situation on Saturday afternoon - playing for Gloucester against the side he will join next season, Exeter Chiefs. At the final whistle though, Lewis was simply disappointed to have lost the game.
Tongan second row Lua Lokotui is looking forward to catching up with some old acquaintances at Sandy Park when Gloucester take on Exeter Chiefs on Saturday afternoon, as he and his team mates hope to finish the season on a high note.
During a break from training ahead of Saturday's Aviva Premiership fixture at Exeter, centre Henry Trinder hopes that Gloucester build on the momentum from the recent win over Saracens, and expressed frustration that he's hitting form as the season end approaches after missing time due to injury.
Gloucester Rugby may have already clinched their Heineken Cup spot for 2013-14, but Director of Rugby Nigel Davies stressed this week that it's important for Gloucester to finish their season on a positive note at Exeter on Saturday.