Joe Ledley says the current crop of Wales international footballers will never get a "better opportunity" of qualifying for the finals of a major tournament.
Chris Coleman's side are currently second in their Euro 2016 qualifying group, and could overtake Belgium when they face the leaders in Cardiff on Friday.
Crystal Palace midfielder Ledley hopes Real Madrid's Gareth Bale comes out on top for Wales against Chelsea and Belgium winger Eden Hazard - voted the best player in the Premier League last season.
"He's [Bale] been key to the way we play and hopefully he can just show the world what he can do," said Ledley.
Tune into BBC Radio Wales from 19:00 GMT and BBC Two Wales from 19:30 GMT on Thursday for a special preview of Wales' crucial Euro 2016 qualifier. You can also follow the coverage online on the BBC Wales Sport website.