Jack Burnell sealed a second medal of the FINA Marathon Swim World Series after claiming bronze in the third event of the competition.
Burnell was involved in a dramatic dash for the line as he gunned for second spot and a another silver of the season following a second-place finish in the Seychelles in May.
However, he finished less than a second behind Mario Sanzullo of Italy who claimed the runner-up spot.
Hungarian Kristof Rasovsky powered to victory on the 10km course, finishing in one hour, 55 minutes and 57.53 seconds, with Sanzullo and Burnell both crossing the line around 25 seconds behind the winner.
Burnell, 24, won silver in the European Open Water Swimming Championships in 2016 and has shown solid form in the early stages of the campaign as he looks to maintain his position in the upper reaches of the overall standings.
After the race in Portugal, Burnell posted on Twitter: "Challenging race at the World Cup out in Portugal today. Happy to get on the podium and have that British flag flying high!"
The next leg of the championships takes place in Balotonfured, Hungary on June 16.
Sportsbeat 2018