Last season's Premier League runners-up sold fellow England full back Kyle Walker to Manchester City for 50 million pounds last month with Trippier a ready-made replacement.
But the 26-year-old, signed from Burnley two years ago, went off after 41 minutes, having twice been hurt in tackles with Alex Sandro, and left the ground on crutches in a protective boot.
"We need to assess him on Monday and then we will see," manager Mauricio Pochettino told reporters.
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"Now the feeling is good. It's true that he has crutches, but it's good. We hope that it is not a big issue."
Trippier recovered from his first clash with Juve left back Sandro and set up the opening goal for Harry Kane with a precise cross after 10 minutes but had to go off after the second clash.
He was replaced by 20-year-old Kyle Walker-Peters before Christian Eriksen scored Tottenham's second goal in the 52nd minute against last season's Champions League finalists.
Spurs visit promoted Newcastle United in their opening Premier League game of the season next Sunday.
(Writing by Ken Ferris; Editing by Neil Rutherford)
