per Forbes:
Former Alabama Crimson Tide quarterback Tua Tagovailoa will assuredly be a first-round pick during the upcoming NFL Draft. The most glaring question most teams have in regard to the Hawaiian quarterback revolves less around his talent and more about his health and durability moving forward.
www.forbes.com
Deshaun Watson per his wiki page:
1. On October 11, 2014, Watson broke a bone in his right hand in a game against the
Louisville Cardinals.
[12][13] He left in the first quarter and was out for the game. As a result of the injury, he missed the games against
Boston College,
Syracuse, and
Wake Forest.
2. He returned for the game against Georgia Tech only to suffer an LCL strain, missing most of the game. He did not play against Georgia State the following week, came back the following week to play against state
rival South Carolina.
[15] After defeating the Gamecocks, it was revealed to the public that Watson had played the game with a torn
ACL.
[16] He underwent surgery on his left knee to repair his ACL the Friday before Clemson's bowl game against
Oklahoma.
[17]
3. Against
Syracuse on November 5, 2016, he had 169 passing yards with two touchdowns, but left the game with an apparent shoulder injury.
4. On November 2, Watson tore his ACL on a non-contact play during practice, prematurely ending his rookie season NFL.
5. In Week 6 against the
Buffalo Bills, Watson passed for 177 yards, one touchdown, and two interceptions as the Texans narrowly won 20–13. Playing through broken ribs and a partially collapsed lung, he took a 12-hour bus ride from Houston to Jacksonville because of fears about what the air pressure might do to his chest.
[79]
en.wikipedia.org
Your comment had nothing to do with productivity or whom had played longer. I think Tag's most recent injury more significant than Watson's broken ribs + lung but playing with those could have lead to his death..
Both were healthy for 2020 and Watson as I've said repeated is the much better player by far.