The former Tottenham manager made the prediction during Sunday evening’s FA Cup third-round tie between the North London outfit and Leicester City at White Hart Lane.
"Kieran Trippier will prove in time that he is a true Tottenham player,” said Pleat. “He passes the ball well, he defends properly and he will be a terrific signing. He has just been unlucky in that he has not been able to dislodge Kyle Walker yet.”
Trippier, who joined Tottenham from Burnley in the summer of 2015, started the game against Leicester and played for the entire 90 minutes.
The 25-year-old defender has struggled for playing time at Spurs so far this season. The right-back has been able to make just two appearances in the Premier League this campaign, playing a total of 100 minutes.
The former Manchester City prospect has played in six Europa League matches for Tottenham this term, creating four chances in the process.
With Kyle Walker back in good form and playing regularly, Trippier is pretty much the back-up right-back at the moment.
Tottenham, who drew 2-2 with Leicester at home in the FA Cup on Sunday evening, are fourth in the Premier League table at the moment, just six points behind leaders and North London rivals Arsenal.