Andy and Jamie Murray have become shock first-round casualties in the first round of the men's Olympic doubles competition in Rio de Janeiro.
The pair - second seeds for the tournament - were dispatched by Brazil's Andre Sa and Thomaz Bellucci in straight sets after an epic, 30-point tie-break in the second.
Buoyed by a vocal home crowd, Sa and Bellucci frustrated the British duo and kept the contest to serve in the first set, winning the ensuing tie-break 8-6.
The Murrays had their noses in front for the first time as they claimed the contest's first break in the fifth game of the second set but the Brazilians shot back immediately with a break of their own to restore parity.
Once again it came down to a tie-break to settle matters. The brothers battled hard to keep alive in the contest, saving six match points but also squandering five set points before the home duo wrapped up the match with a 16-14 win.
The Murrays' exit from the competition comes the same day as the Williams sisters suffered the same fate in the women's doubles event.
