[13][14] In September 2017, he was named in Sri Lanka's Test squad for their series against Pakistan in the United Arab Emirates.
His inside-out drives to Yasir Shah was described similar to that of maestro Mahela Jayawardena's stroke play by critics.
[17] In October 2017, he was named in Sri Lanka's One Day Internationals (ODI) squad for their series against Pakistan in the United Arab Emirates.
[20] He made his T20I debut for Sri Lanka against Pakistan on 26 October 2017, keeping wicket in the match.
[24] In April 2023, Samarawickrama returned to the Sri Lanka's Test squad after six years for their series against Ireland.
[28] In the second T20I against Afghanistan, Samarawickrama scored his maiden T20I fifty with 51 off 42 and eventually Sri Lanka won the match by 72 runs and sealed the series 2-0 with one game to spare.