Kriel was a part of the Springbok team that defeated France 3–0 in the mid-year test series in 2017. Following this series, Kriel took over as captain of the Lions for the rest of the 2017 Super Rugby season after regular captain Warren Whiteley was injured during the test series against the French.
Kriel was ruled out for the rest of 2017 following a shoulder injury at training prior to the first test against New Zealand.
On 30 April 2018, it was announced that Kriel had been released from his contract with the Lions to join up with former coach Johan Ackermann at Gloucester Rugby.[2]
The Lions announced 3 February 2020 that Kriel had rejoined the club on a three-year deal.[3]