Frank Lampard has urged Chelsea to unleash the burning sense of injustice over their latest Champions League setback in the second leg of their quarter-final against Manchester United.
Lampard and his team-mates were left fuming after being denied a “blatant” penalty in Wednesday night's 1-0 defeat to United, which left their season on the brink of unravelling.
Patrice Evra appeared to chop down Ramires in the dying seconds at Stamford Bridge, but Spanish referee Alberto Undiano Mallenco became the latest official to rule controversially against Chelsea in a crunch Champions League match in recent seasons.
Lampard said: “We can't really think like that too much because it's negative thoughts.
“We just use it to motivate us, really.”
He added: “Everyone knows it was a penalty, but he didn't give it — simple as that.
“I can't believe he didn't give it. It was blatant — everyone in the stadium saw that.”
Mallenco is the same referee who disallowed Chelsea a Champions League goal at Juventus two years ago, despite the ball being a whole foot over the line.
Lampard said: “Things do sometimes go in your favour and sometimes they don't.”