[7] He made his debut in the 2016–17 RFU Championship on 30 October 2016 against London Scottish and scored a brilliant individual try beating multiple defenders, demonstrating his raw power and pace.

"[13] He did not actually play due to picking up an injury in London Irish's end-of-season playoff battles for promotion from the Championship back to the Premiership.

[15] He retained his place for the next match in the Quilter Autumn Internationals, against Australia, and put in a powerful performance capped by a try in the second half.

[18] He scored two tries in a 45-7 win but did not make the match day squad for the rest of England's campaign Cokanasiga returned from the World Cup with a serious knee injury.

[20] His next England selection came on 10 June 2021, when Jones named him as part of his squad for the 2021 Summer Internationals against the USA and Canada.

[23] Cokanasiga again injured his knee in a preseason game for Bath against Cardiff Rugby,[24] meaning that he missed out on selection for the 2021 Autumn Nations Series.