The ban stemmed from Gunathilaka's arrest and subsequent charges related to an alleged sexual assault incident in Australia.
The case revolved around a Tinder date between Gunathilaka and the woman, which led to Gunathilaka's arrest and initial charges, most of which were later dropped.
Kusal Mendis, Niroshan Dickwella and Danushka Gunathilaka were all handed one-year bans by Sri Lanka Cricket.
Galle Gladiators pulled off a thrilling 4-wicket win over Kandy Warriors in the fourth fixture of the Lanka Premier League at the R. Premadasa Stadium in Colombo on Tuesday.
Sri Lanka's combined 11 for the first ODI in Durham is less than Eoin Morgan's overall experience.
Sri Lanka have suspended three players and sent them back home from the England tour after breaching coronavirus protocols.