 He made his first appearance of the following campaign in Rennes' opening match of the season, coming on as a second-half substitute for Gélson Fernandes in a 1-0 defeat to Nice.On 21 January 2017, Erasmus signed for Ligue 2 side Lens for the remainder of the season.He scored once in 12 league appearances for the club, with the goal coming on the final day of the season as Lens narrowly missed out on promotion.