The England right-back shone for City in an attack-minded system and contributed to a 2-0 win away to Brighton as the club got off to a winning start in the Premier League.
Walker was a slightly controversial signing this summer, joining from Spurs in a £50million deal that raised a few eyebrows due to both the price tag and his motivations for leaving for a rival.
Various reports last season suggested the 27-year-old had fallen out with Pochettino towards the end of his time at White Hart Lane, and he seemed to allude to that in his post-match interview today.
It’s not clear why Walker might have felt unhappy with life towards the end of his Tottenham career, but he slipped in a little dig after commenting on how much he was enjoying life at City.
‘I am enjoying working with the club, the lads have been so welcoming and I am enjoying my football,’ he told Sky Sports.
‘It’s better to play football with a smile on your face.’
Spurs have also faced dissent from Danny Rose this week after the left-back came out criticising the club’s transfer policy and suggesting he’d be better off elsewhere if he wants to win any silverware.
Walker may also have found himself stalling at Spurs and clearly relished what he will be hoping is the start of a more successful season at City this term.