Highly unlikely. Firstly, the last flat stage is a procession and the leader is accepted as winner by convention. Secondly, it’s highly unlikely that the second

Highly unlikely. Firstly, the last flat stage is a procession and the leader is accepted as winner by convention. Secondly, it’s highly unlikely that the second place rider on the general classification could even get time on the leader. The last stage is typically flat and has nothing that could be used to force a separation (climbs, wind, etc), plus the leader has a full team at his disposal to chase such an attack down. If the last stage was mountainous or a time trial, perhaps. But it hasn’t been in a long time (or ever?) Also, I don’t think a guaranteed banking of the second place cheque would ever prevent a rider from going for first. These guys want to win, not make a few extra euros.