Saturday 14 March 2015 16:58, UK
Andy Murray and his brother Jamie could take on doubles specialists the Bryan brothers on Saturday as Great Britain face the USA in the Davis Cup.
The prospect of two sets of brothers doing battle on the tennis court had us wondering - which other male siblings have both prospered in the world of sport?
You definitely wouldn't mess with these two! The giant Ukrainians have dominated world heavyweight boxing in recent years - they hold all the major world titles between them. Older brother Vitali was often thought of as the best, but he had a four-year break through injury and only when he returned did they make history as they both became world champions at the same time. Wladimir now rules the roost in the heavyweight division - they have always stated they would never face one another in the ring.
Coming through the ranks at Manchester United, Gary and Phil Neville went on to become England regulars, with 144 caps between them. Their combined medal collection includes 14 Premier League titles, three Champions Leagues and six FA Cup medals. Gary is now on our screens regularly as a Sky Sports pundit while Phil was on the coaching staff at Old Trafford. Not to mention their sister Tracey of course, who represented England at netball.
These Aussie twins piled up almost 19,000 Test runs between them and 52 centuries during their time in the Australian team. Steve, four minutes the older twin, captained them to 15 of their record 16-Test winning streak and also lifted the 1999 World Cup during his spell. They also added over 150 Test wickets with Steve's medium pace and Mark's off spin.
Peyton and Eli Manning are the first brothers to each quarterback a team to Super Bowl glory - being named MVPs in the process. The sons of former Saints signal caller Archie Manning, Peyton and Eli led their NFL teams to glory in 2007 and 2008, respectively. Peyton, the older by almost seven years, guided the Indianapolis Colts to a 29-17 victory over the Chicago Bears, followed 12 months later by Eli, who oversaw the New York Giants' 17-14 success over the New England Patriots.
Paul Smith, the oldest brother, is a two-time challenger for world super-middleweight honours and the youngest, Callum, is one of Britain's brighest young hopes. When Liam claimed the British light-middleweight title he joined brothers Paul and Stephen as Lonsdale belt holders to make history as the first time in the 104-year history of the belt that three brothers held it simultaneously.
The Charlton brothers played a huge part in England's glorious 1966 World Cup victory, and both are huge figures in football in their own right. Bobby is still England's top scorer, was a European Footballer of the Year and bagged two as Manchester United became the first English side to win the European Cup in 1968. Jack was a Leeds stalwart who won the league and FA Cup. Jack went on to become one of the best managers in Republic of Ireland history.
The Yorkshire duo have been the driving force behind a huge growth in popularity for triathlon in the UK, mainly due to their enormous success. Younger brother Jonny is a six-time world champion and Olympic bronze medallist, but he's still behind his brother Alistair - who claimed gold at the London 2012 Olympic Games.
There must be something in the Yorkshire water to create four hulking brothers who made rugby league history when Sam, Luke, Tom and George all played for the South Sydney Rabbitohs this year. Sam, George and Tom also got the nod for England in the World Cup.