Andy Murray twice failed to serve out for the match in a fiery decider as Fabio Fognini battled to victory at the Shanghai Masters.
A day after winning his first Masters 1000 match in more than two years when beating Juan Ignacio Londero in three sets, Murray went the distance again but lost to Fognini 7-6(4) 2-6 7-6(2) in a three-hour epic.
Tensions boiled over in the final set as Murray told Fognini to "shut up" during a fierce exchange after the Italian appeared to call out when the Briton hit a volley.
The verbals came between Murray's two failed attempts to serve it out, with Fognini going on to hold his nerve and win the deciding tie-break. The 10th seed faces the winner of Taylor Fritz’s match with Karen Khachanov, which takes place on Wednesday.