Graham Mertz had the worst preseason performance by a Texans QB since 2009

He might have the worst performance in Texans preseason history, but the data only goes up until 2009 (Source ESPN). Ryan Fitzpatrick in the 2014 preseason opener is the only that comes close. He went 6/14 55 yds 0Tds 2 ints and a 14.6 rating.