AB de Villiers is expected to remain captain on return to the side.
However, top Pakistan Cricket Board official Najam Sethi refuses to divulge the name of the country.
Nuwan Kulasekera last represented Sri Lanka in the ICC T20 World Cup held in India.
Sri Lanka and Australia face off in the second T20 on 8 September. The visitors lead the series 1-0.
Sri Lanka and Australia face off in the first T20 at Pallekele on 6 September.
Sri Lanka host Australia in the fifth ODI on 4 September. The visitors lead the series 3-1.
Says 'their mouths are bigger than their ability'.
Sri Lanka host Australia in the fourth ODI on 31 August as the visitors lead the series 2-1.
Dilshan will play the 2 Twenty20 games against Australia before retiring from the sport.
Sri Lanka host Australia in the third ODI on 27 August. The series is level at 1-1.
Dilshan helped Sri Lanka win the 2014 Twenty20 World Cup title.
Sri Lanka host Australia in the second ODI on 24 August. The visitors lead the series 1-0.
Sri Lanka host Australia in the first ODI on 21 August.
Sri Lanka face Australia in the third test on 13 August as the hosts lead the three-match series 2-0.
Sri Lanka face Australia in the second Test on 3 August. The hosts lead the series 1-0.
Muttiah Muralitharan stepped down from his spin-bowling consultant post on the eve of the first Test.
Muralitharan is currently employed by Australia ahead of their Test series against Sri Lanka.
Sri Lanka host Australia in the first Test match on 26 July.
Kithuruwan Vithanage played 10 Test matches, six ODIs and three T20 games for Sri Lanka.
Sri Lanka are yet to beat England in the tour.
Hosts England have won the 5-match ODI series, 2-0.
Hosts England will look to wrap up the ODI series when they face Sri Lanka in the fourth game on 29 June.