defender Axel Tuanzebe was spotted wearing a fitness tracker during Tuesday night's.
The United man played the full 90 minutes in the defeat at Old Trafford, https://incitasecurity.com/crossfit-heart-rate-monitor/ which handed their arch-rivals City the title.
Eagle-eyed fans spotted that Tuanzebe was wearing a black strap on his wrist concealed by his sleeve throughout the match.
Axel Tuanzebe wore a smart strap during Manchester United's defeat to Leicester on Tuesday
Leicester won 2-1 at Old Trafford to hand United's rivals City the Premier League title
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<div class="art-ins mol-factbox floatRHS sport" data-version="2" id="mol-03536280-b33f-11eb-b4fe-bfefda38cfa4" website United defender Tuanzebe wore a smart strap during Leicester loss