Vital midfielder N'Golo Kante returned from an injury .
Riyad Mahrez scored a highlight - reel goal -- again -- as Leicester won at Watford 1 - 0 to keep pressure on Tottenham and Arsenal in the title chase .
Vital midfielder N'Golo Kante returned from an injury and Riyad Mahrez scored a highlight - reel goal -- again -- as Leicester won at Watford 1 - 0 to keep pressure on Tottenham and Arsenal in the title chase .