The over before Klaasen got out went for four runs, that upset his rhythm and made him chase the wide ball that should have been left.Nah. If Klaasen was there they could have still scored singles and then pounded the last two overs. They literally just needed two boundaries in the last three overs plus singles to coast to victory.
Losing him lost all momentum.
It was a bad ball from Pandya which got an even worse response from Klaasen