That was the trend for both sides in the remainder of the half as the visitors failed to register a single effort on target in the opening 45 minutes.
But their equaliser arrived within moments after as Youri Tielemans slid in Vardy, who nudged past the onrushing Ben Foster with the outside of his boot.
Jose Mourinho thinks Brendan Rodgers left Celtic for Leicester City too early, saying that the Northern Irishman should have waited until the end of the season. I want to leave at the right moment and in my opinion the right moment would be pre-season'.
Club captain Morgan was recalled after five games on the bench by new Foxes boss Brendan Rodgers, who took charge of his first match back in England, and fingers have been pointed towards Morgan for his role in the 2-1 defeat.
Rodgers was announced over the public address system as the former Watford manager before the start, but the boos that followed rang more of duty than spite.
"My players played really well and we deserved a good result", Javi Gracia said.
But Rodgers could not hide his frustration on the touchline when Schmeichel sloppily gave the ball away to allow Deeney and Gray to link up for the victor.
Writing for the Daily Mail, as cited on Football Scotland, Commons explains that the striker could still play a part in the club's title bid this season.
- Only Sergio Aguero (10) has been directly involved in more Premier League goals in 2019 than Watford striker Deeney (eight - five goals, three assists).