Tour de France: Stage 4 highlights - Video

As Demare heads to the line, Degenkolb and Swift go down

As Demare heads to the line, Degenkolb and Swift go down (Image credit: Bettini Photo)

FDJ's Arnaud Démare won the fourth stage of the Tour de France in a hectic sprint that saw world champion Peter Sagan (Bora-Hansgrohe) disqualified from the race for the part he played in a late crash.