There's potential interest in both games for Gloucester supporters with Trinder, Dave Attwood, Luke Narraway and Charlie Sharples all named in the Saxons squad for the tournament and new signing Dario Chistolini part of the Italian squad.
The Saxons got off to a flier with an 87-8 win over the USA last weekend at Northampton and Trinder was prominent in a fine attacking display including scoring a second half try.
Despite this, the 22 year old centre is under no illusions that the Tongans will present a far different challenge.
"Tonga will be very aggressive and they will definitely hit hard, that's always an impressive feature of the national sides from the Islands.
"They play with a lot of flair and invention, but they definitely hit hard. If we can stay smart and get in behind them though, hopefully we'll give ourselves a chance.
"We played fairly well (against the USA) but we threw the ball around at times when we should have kept it tighter, and against a better team we will be punished.
"And I think we can fairly expect that Tonga will close us down a lot more, and not allow us that kind of space."
Despite crossing the line for tries against the Barbarians and the USA, Trinder insists that while it's good to score, it's more about the team.
"It's just about taking the gap wherever it presents itself, or wherever you make it.
"But I'd always prefer to make a try than score one, even though it's a great feeling to get over that line yourself.
"We were running in tries from all over the place, and at one point I was worried I might not get on the scoresheet to be honest.
"So in some respects it was a little bit of a relief to get over, but I'd far rather I don't score and we get the win.
"Sometimes you have to give that pass, even if you might think you could take a gap - and that's all part of doing the job properly.
"If you make a big call and don't pass, then if you mess it up it's your fault. So while it might be nice to take the risk if it pays off, it's just not worth it."