Thomas Frank says he has "left a big piece of my heart at Brentford" having left the club to become Tottenham Hotspur's new head coach.

Frank was announced as Ange Postecoglou's replacement on Friday (AEST), signing a three-year contract with the north London club.

The Dane spent nearly seven years at Brentford, taking over as head coach in October 2018 and overseeing 316 games across all competitions, as well as leading it to Premier League promotion for the first time in its history in 2021.

In 2024-2025, Brentford finished 10th, 18 points better off than Tottenham.

"The time has come for me to move on. But even as I leave, I know I have left a big piece of my heart at Brentford, not just at the football club but with the community and, of course, the incredible and loyal supporters," a statement from Frank on Brentford's website read.

"I want to extend my profound gratitude to the club for giving me the chance to pursue my dreams and for everyone involved who made the journey such a memorable one.

"For my family and I, it has been a privilege to be allowed to be part of such a special community - it's an experience and adventure that we will cherish for life. So, thank you.

"Whatever we have achieved, we have achieved together, and our success is built on unity, spirit, courage and ambition at every level of the club and amongst the fans.

"Everybody has contributed, and every contribution has been invaluable. I am not just leaving a football club; I am saying goodbye to friends whose support through good and bad times I will carry with me always.

"I would like to say a special word of thanks to Matthew Benham. His trust and friendship have meant so much, and the fact he gave me a chance in English football means I will always owe him a debt of gratitude. Thank you, Matt.

"So, while this is a goodbye, I hope the relationships I have built with everybody will be lasting ones and, of course, we will meet again in the wonderful world of football."

Frank's first competitive game in charge of Spurs will come on 14 August (AEST) in the UEFA Super Cup final against Paris Saint-Germain.