The Cleveland Browns quarterback struggles have been well documented since 1999.  But now, Browns fans might have to brace themselves for a double dose of embarrassment as two former quarterbacks will appear in season three of Netflix’s “Quarterback” docuseries. Baker Mayfield and Joe Flacco will join Jayden Daniels and Cam Ward as the four quarterbacks selected to appear in this season’s Netflix series. The series premieres on July 14 after following these four quarterbacks last year. It’ll almost certainly document Mayfield’s brutal feelings towards the Browns as well as Flacco’s trade within the division after five bad starts with the Browns.  Mayfield and Flacco set to appear on Netflix Cleveland’s 2018 No. 1 overall pick, Mayfield, and the Browns have a tricky relationship. The Browns bailed on him before his fifth year in 2022 when they traded three first round picks and $230 million for Deshaun Watson.…