His involvement, though, may raise questions about his future. Should he be thrown in at the deep end now, like Raheem Sterling? Or should he be loaned out again?
Whatever happens, the 20-year-old is seizing the moment ahead of the new campaign.
"The people, as always, have been fantastic as well. Every time we play in America the people have been brilliant, so I just want to say thank you to them, thank you for coming out and supporting us," Suso told Liverpool's official website.
"Playing a final is fantastic and even more so against Manchester United.
"We are concentrated on trying to get fitness and hopefully, if we do things right, we will win the tournament.
"I think we've been brilliant. We have won all the games [in the ICC] and we've played really good and really competitive against some good teams."
The Spaniard is just one of many young players looking to break into Rodgers' first-team plans, of course, with Jordon Ibe another prime example.
What is fascinating about the Reds' current setup, though, is that Philippe Coutinho, Lazar Markovic and Sterling are 22, 20 and 19 respectively - and are expected to feature heavily for Liverpool this term.
Why not Suso, then?
Rodgers himself has admitted that the 20-year-old returned from his loan spell last season a better player - and his goal against Milan was evidence.
As many are at pains to point out, it is only pre-season. And yet there was enough technical prowess about his finish - and the one-two that preceded it - to suggest permanent class not just temporary form.
The only danger for the Reds, of course, is an overcrowding in midfield. Especially if Liverpool end up with a shortage of strikers.