Defending champions England Under 20 have named their side to take on Italy in their opening game of the IRB Junior World Championship at the ECO Light Stadium in Auckland on Monday, kick off 06:35 (BST) live on Sky Sports.
Moriarty, a key figure in England's triumphant campaign last summer, starts on the flank with Gloucester team mate Billy Burns named amongst the replacements.
England last faced their Italian rivals in their final game of the U20 Six Nations, winning 52-5, but Head Coach Nick Walshe says that that result will have no bearing on this game.
"We're looking forward to kicking off this campaign, we've been in New Zealand for over a week now - the lads are acclimatised and have trained well. They've taken real ownership and can't wait to get out there.
"We did well against Italy in the Six Nations but that game has gone, we're focused on performing well in this game and kick-starting our JWC. "
Captain Callum Braley added:
"We've enjoyed our first week in Auckland but now it's time to get down to business. We're excited about the next five games - there's pressure on us, but we have to use that to our advantage and perform as well as we can."
England Under 20 starting XV against Italy
15 Aaron Morris (Bedford Blues)
14 George Catchpole (Leicester Tigers)
13 Nick Tompkins (Saracens)
12 Harry Sloan (Harlequins)
11 Nathan Earle (Saracens)
10 Sam Olver (Northampton Saints)
9 Callum Braley (Bristol Rugby, captain)
1 Danny Hobbs-Awoyemi (Northampton Saints)
2 Tom Woolstencroft (Bath Rugby)
3 Paul Hill (Leeds Carnegie)
4 Maro Itoje (Saracens)
5 Tom Ellis (Bath Rugby)
6 Ross Moriarty (Gloucester Rugby)
7 Gus Jones (London Wasps)
8 James Chisholm (Harlequins)
16 Jack Walker (Leeds Carnegie)
17 Alex Lundberg (London Wasps)
18 Biyi Alo (Saracens)
19 Charlie Ewels (Bath Rugby)
20 Joel Conlon (Exeter Cheifs)
21 Henry Taylor (Loughborough University)
22 Billy Burns (Gloucester Rugby)
23 Henry Purdy (Leicester Rugby)
Brighton is the venue of choice for England this week as the squad have reported for a training camp to prepare for the upcoming international against Wales. GRTV caught up with Gloucester's Matt Kvesic after the first day's training.
Speaking to GRTV after the game, Gloucester Rugby number eight Ben Morgan reflected on the loss to Northampton Saints, and spoke about what he and the team need to do for the new season when the team return after the summer break.
In only his second Aviva Premiership outing, Lloyd Evans scored his first senior try for Gloucester against Northampton Saints on Saturday and told GRTV afterwards that he enjoyed the experience despite finishing on the losing side.
Gloucester will round off their Aviva Premiership campaign on Saturday with a tough finale against Northampton Saints. Director of Rugby David Humphreys told the local media this week that he's pleased with the team's attitude over the past two games and is looking for more of the same.
Speaking to GRTV after the 12-11 Aviva Premiership victory at Sale Sharks on Friday evening, Matt Kvesic described it as a real team effort with several players having to play out of position due to illness and injury in the ranks.
Despite he and a number of his team mates playing out of position, Greig Laidlaw's four penalties were enough to help Gloucester to a 12-11 Aviva Premiership win at Sale on Friday evening. The skipper told GRTV after the game that everyone had played their part, especially the younger players.
Kingsholm has seen some great concerts over the past few years, but Lionel Richie took things to a new level on Sunday evening as his charisma and quality delivered a performance that delighted an 18,000 audience.