Former England U20 captain Jack Clifford, who made his debut in Tokyo, will be replaced by Howard Packman, who is set to travel to New Zealand with the England U20s for this year's Junior World Championship in June.
“Howard has played for a number of England teams and has been a super talent from a very young age," said Amor. "This is a great opportunity to get him involved in the Glasgow tournament. With the Junior World Championship very much in mind, this will help with his preparation and development.
England squad: Dan Bibby, Phil Burgess, Sam Blanchet, Alex Gray, Tom Mitchell (c), Dan Norton, Howard Packman, Tom Powell, James Rodwell, Sam Stanley, Marcus Watson, Jack Walsh
Canada men's Sevens head coach Geraint John has made five enforced changes to his squad for the penultimate round of the HSBC Sevens World Series 201314 in Glasgow, Scotland.Two captains Nanyak Dala and Nathan Hirayama are both sidelined by injury, while Ciaran Hearn, Chauncey O'Toole and Lucas Hammond are unavailable, the latter enjoying a stint at the Crusaders in New Zealand.
The quintet are replaced by Adam Kleeberger, Connor Braid, Mike Fuailefau, Pat Kay and Duncan Maguire while ever-present forward John Moonlight leads the squad in Glasgow.
Canada squad: John Moonlight, Adam Kleeberger, Mike Scholz, Connor Braid, Mike Fuailefau, Phil Mack, Harry Jones, Conor Trainor, Sean Duke, Sean White, Pat Kay, Duncan Maguire
