In February, Reynolds was captain of the Bulldogs 2017 Auckland Nines squad. On 26 April, after weeks of speculation where Reynolds would go after the season's end, he signed a four year contract with the Wests Tigers. The value was believed to be around 3 million over four years. It was quoted in many articles that he "felt sick" about leaving the Bulldogs. His influence on team mates also evident when club captain, James Graham, appeared visibly upset on the TV show NRL 360 whilst talking of Reynolds departure at the end of the year. In Round 18 against the Newcastle Knights, in his final game at Belmore Oval, he was sent off a winner at the death, with Moses Mbye running 70 metres to score the match winning try, afterwards the crowd ran onto the field to celebrate with Reynolds after securing a 20-18 victory. In Round 26 against the St George Illawarra Dragons, Reynolds played his last match in Bulldogs colours but injured his ankle in process of scoring his try and sat out most of his farewell match in the 26-20 win at ANZ Stadium. Reynolds finished his last year with the Bulldogs with 5 tries from 17 matches.