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When Nelson Rivas was called upon early in his Inter Milan career, he was quite decent, as was evident in a good display against Juventus.
He started playing his worst after his body began breaking down.
His reaction time was noticeably slower, which made him flat-footed. As a result, he was regularly caught out of position.
Rivas only became a joke when he stopped believing in himself.
José Mourinho, who expects his players to be versatile, threw Rivas in at the deep end at full-back against Antonio Cassano.
The Sampdoria genius utterly embarrassed Rivas.
Speaking to Rai television, the Special One criticised the Colombian (via TheStar.com.my): "Rivas has not done well—he knows it, we know it, but on the field we are all together and take responsibility together."
A week prior to the 3-0 loss to Sampdoria, Rivas was a nervous wreck in a 0-0 draw against Manchester United.
The only reason the game stayed 0-0 was because Mourinho took the drastic step of subbing off the centre-back at halftime.
What kind of performance was Mourinho expecting from Rivas against Sampdoria? Obviously, it wasn't going to be competent.
It got to the point where Mourinho would rather play Esteban Cambiasso out of position at centre-back than give Rivas another chance.