Left - hander Thirimanne had boosted his prospects of a Test debut after retired hurt on 104 on day one .
Left - hander Thirimanne looks set to replace injured captain Tillakaratne Dilshan at the Rose Bowl .
Left - hander Thirimanne , who looks set to replace injured captain Tillakaratne Dilshan at the Rose Bowl , had boosted his prospects of a Test debut after retired hurt on 104 on day one .