Trevor Chappell few days later [Austin] Robinson, Dennis' manager, rang and said, "Do you want to join World Series Cricket" and I said, "Yeah, where do I sign?"" In 1977–78 Chappell played ten games for WSC Australia in the Country Cup, scoring 339 runs, more than any other Australian batsman, although his average was only 26. A highlight was a 110 he scored against the West Indies in Albury. He also scored 56 off 300 minutes against a World XI in a Lismore game which resulted in him being booed by the crowd for slow scoring. "Trevor Chappell batted exceptionally well and
Greg Chappell performance. Despite protesting the strenuous nature of the players' workload in this new era, Chappell found himself leading the team to Pakistan two weeks after the end of the Australian season. Pakistan narrowly won the first Test, then prepared featherbed wickets for the remaining two matches. At Faisalabad, Chappell made 235 and as a protest at the pitch, allowed all eleven Australians to have a bowl in Pakistan's innings – the first time this had happened in a Test since 1884. Australia lost the series 0–1. Later in the year, Australia played a second Centenary Test, this time to commemorate