The 19-year-old, who made his Premiership debut as a substitute at West Brom on the final day of the season, joins Darren Ambrose and Shola Ameobi at a training get together in Sardinia.
It remains to be seen whether or not Chopra, who has previously represented England at Under-15, 16, 17, 19 and 20 levels, is in Platt’s plans for the upcoming matches with Serbia-Montenegro and Slovakia.
Meanwhile the England Under-17 team, captained by Steven Taylor, finished their European Championship campaign with a 1-0 defeat by Austria in the third place play-off.