The Spanish midfielder's 22nd-minute strike ensured that the Bees became the first promoted club to open the scoring in a top-flight campaign since Hull City in 2016/17.
Canos's effort - Brentford's first ever Premier League goal - was also the first time that a new club in the competition have netted first in a PL season since the inaugural 1992/93 campaign.
The last Spaniard to net the first goal of a Premier League season was Swansea City's Michu in 2012/13.
Arsenal's Alexandre Lacazette missed the trip to Brentford and was denied the opportunity to extend a Premier League record, having become the first player to score the opening goal of a campaign for two PL seasons in succession.
The Frenchman had previously achieved the feat on his Arsenal debut at home to Leicester City in 2017/18, before striking at Fulham in 2018/19.
|1996/97||Stig Inge Bjornebye||LIV||MID|
|2005/06||Ruud van Nistelrooy||MUN||EVE|
|2015/16||Kyle Walker (OG)||MUN||TOT|
|2019/20||Grant Hanley (OG)||LIV||NOR|