Vieira is one of the best and most promising young players in the Championship, but the 19-year-old midfielder did not start against Preston North End at the weekend.
The England Under-20 international came on as a substitute in the 61st minute on Saturday afternoon, as the Whites played out a goalless draw with Preston at home.
Former Leeds midfielder Couzens has suggested on Twitter that Vieira should start for Leeds against London club Fulham at Elland Road in the Championship on Tuesday evening.
The 42-year-old, though, does understand why the teenager did not start against Preston, suggesting that it was due to his involvement with the England Under-20 side at the 2017 Toulon Tournament Champions in the summer.
Yes I would start him on Tuesday night great player but can understand why he hasn't played with his England duties in the summer https://t.co/hSr2HWXbjt— andy couzens (@andycuz23) 13 August 2017
We also lost the midfield yesterday. Think Vieira will start Tuesday.— Darren W (@WorsnopD) 13 August 2017
Vieira is a very good footballer, and the youngster will be a key player for Leeds as the season progresses.
The Whites kicked off their 2017-18 Championship campaign with a 3-2 victory over Bolton Wanderers away from home at the Macron Stadium earlier this month.