I think the last player to have captained a team in the world cup who had at one time or another played for us, would be Viduka in the 2006 world cup, but Radebe was both captain for South Africa in 1998 and 2002, whilst still playing for us Before that I would say we have to got all the way back to 1974 when Billy captained Scotland. Just checked as I thought maybe John Charles might have captained Wales in 58, but he didn't, so Adams will become the 3rd player to captain his country whilst playing for Leeds
For those who are looking for some reason to have an interest in the world cup, then here's a list of players that we were linked to during the summer (linked is a very loose definition), who may make an appearance at this years tournament. Argentina - Rodrigo De Paul, Nicolas Tagliafico Belgium - Michy Batshuayi, Charles De Ketelaere Ecuador - Gonzalo Plata (He's playing against Qatar in the opening game) Japan - Daicha Kamada, Takumi, Minimino Morocco - Adbe Ezzazouli Netherlands - Cody Gakpo, Noa Lang Portugal - Octavio, Matheus Nunes Serbia - Luka Jovic USA - Sergino Dest Wales - Brennan Johnson