'A clear red' - Should Ipswich's Diop have been sent off?

Issa Diop escaped what Oliver Glasner called "a clear red card" during Ipswich's 1-1 draw with Nottingham Forest - but the incident split opinion, so was it the right call or not?

With less than five minutes of the second half played when Diop slid in on Forest's James McAtee, a sending off could have transformed the outcome of the game.