Watford have lost five of their six Premier League home games against Arsenal, coming from behind to win the other 2-1 in October 2017. An Arsenal win is 2.0621/20.
Arsenal have won their last three Premier League meetings with Watford, keeping a clean sheet each time. Indeed, Watford were the only side not to score against the Gunners in the Premier League last season. Arsenal are 4.47/2 to win to nil.
None of the 12 top-flight meetings between Watford and Arsenal at Vicarage Road have finished level - Watford won five of the first six such games (L1), while Arsenal have won five of the most recent six (L1). Arsenal are 3.39/4 to win half-time/full-time.
Watford haven't lost their opening three home league matches of a season since the 1991-92 campaign - the Hornets won their opening three at Vicarage Road last season. The draw half-time/Arsenal full-time double result is 5.79/2.
Arsenal have conceded nine penalty goals in the Premier League since the start of last season - only Brighton & Hove Albion have conceded more (10). The odds of there being a penalty in the match are 3.412/5.
Watford haven't lost five consecutive home league games since December 2013 under Gianfranco Zola in the Championship, last doing so in the top-flight in April 1988. The odds of Watford ending their losing run with a draw are 3.814/5.
Arsenal have kept just nine clean sheets in 42 Premier League matches under Unai Emery. Over 2.5 goals is 1.68/13.
Since the start of the 2016-17, no player has conceded more penalties in the Premier League than Arsenal's Granit Xhaka (five, level with José Fonte). Both teams to score is 1.538/15.
Watford go into MD5 as one of two Premier League teams yet to win in 2019-20, along with Wolves (W0 D1 L3); the Hornets haven't failed to win any of their opening five league matches of a season since 2011-12 in the Championship. The are 3.814/5 to claim a much needed three points.
Only Mohamed Salah (52) has been involved in more Premier League goals since Pierre-Emerick Aubameyang's debut for Arsenal in February 2018 (44; 35 goals, 9 assists), with the Gabonese forward scoring the winner in Arsenal's 1-0 win at Vicarage Road in 2018-19. Aubameyang is 2.35/4 to score.