Murray set to recover for Davis Cup against Italy
Murray was confined to his hotel room with a stomach bug during the draw on Thursday but the Wimbledon champion is likely to line up against Seppi in Friday's second singles match, when he will be looking for his sixth consecutive win against the Italian.
James Ward will start Britain's bid to reach the Davis Cup semifinals for the first time since 1981 with a daunting test against Italian No. 1 Fabio Fognini in the opening match.
Italy has not reached the final four since 1998.