Watford failed to score against Bolton last season, losing 0-1 at Vicarage Road and 0-2 at the Reebok Stadium.
Bolton have won six of their last seven league matches against the Hornets, losing the other.
Watford are unbeaten in their last seven opening day matches, winning four (D3).
No side scored more goals via indirect free-kicks last season than Bolton (8).
The Hornets were shown 105 cards last season (99 yellow, 6 red), the most in the division.
Matej Vydra was Watford's top scorer in 2012/13 (incl. play-offs), bagging 22 goals and providing four assists.
No Championship side scored fewer goals from the penalty spot last term than the Trotters (1).
Gabriele Angella scored more goals than any other defender last season (7).
59% of Bolton's goals last term arrived in the first half; a league-high proportion.
Watford under Giuseppe Sannino kept eight clean sheets in 13 home matches last term, winning eight (D3 L2).