It was a frustrating night for Jan at the Cardiff City Stadium as a couple of his free-kicks in decent positions were blocked and late on, he just failed to connect with a corner for a potential equaliser. Team-mates Mousa Dembele and Nacer Chadli remained on the bench.
The emotions for the Wales team and fans couldn't have been more of a contrast after Gareth Bale scored the only goal of the game in the first half.
Belgium enjoyed the lion's share of possession throughout but failed to seriously test Wayne Henderson in the Wales goal.
The win leaves Wales top of qualifying Group B, three points clear of Belgium and crucially five points clear of Cyprus in third, with four matches remaining. The top two from each of the nine groups go straight through to the finals in France next summer so Wales are now in pole position to reach their first major tournament since 1958 - much to the delight of Ben Davies, who missed the game through injury but was in Cardiff taking up a pundit's role with Sky Sports.
"There is an unbelievable sense of joy," said Ben as his team-mates celebrated. "Nights and results like this don't happen very often and we have to savour this moment.
"We were difficult to break down and even when chances came there was always someone there throwing their body in the way.
"It's nice looking at that table now. We're in the driving seat and we have every chance of going all the way."