John Terry was sent off as Chelsea eased into the fourth round of the 2016-17 FA Cup by beating League One's Peterborough United 4-1 at Stamford Bridge on Sunday.
Pedro and Michy Batshuayi scored in the first half, and Willian added a third goal after the break. Captain Terry was shown a red card in the 67th minute for taking down the goalward Lee Angol as the last man.
A Tom Nichols goal soon after the dismissal hinted at a potential turnaround, but Pedro added his second in the 75th minute to seal Chelsea's victory.
It could have been even worse for Grant McCann's Peterborough side, as the hosts missed a number of other chances, but the Blues never looked to be under any real pressure despite spending 23 minutes with only 10 men.
Both clubs provided their respective lineups before kick-off:
Chelsea manager Antonio Conte opted to give a number of fringe players an opportunity—including Batshuayi and youngsters Ruben Loftus-Cheek (20) and Nathaniel Chalobah (22)—while Terry made his first start since October.
The Blues dominated from the off with Gary Cahill going close from an early corner. Angol, though, could have made things interesting had he turned home from close range in the ninth minute, but his volley went straight at Chelsea goalkeeper Asmir Begovic.
Pedro's opener came in the 18th minute, with the Spaniard cutting inside on the edge of the six-yard box and slamming a fine finish into the corner after Cesc Fabregas' and Chalobah's efforts were blocked.
Following a decent penalty appeal for Chelsea when Ryan Tafazolli seemed to foul Batshuayi, Pedro had a golden chance for a second but could only hit the post despite seeing a gaping goal in front of him.
Chelsea were peppering the Posh goal, and Batshuayi netted a timely second just before half-time.
The Belgian summer signing has spent much of his time on the bench this season, but he finished with aplomb in the 43rd minute from near the penalty spot to complete an excellent counter-attack:
When Willian curled home a third from the edge of the box seven minutes after the break, it looked as though Chelsea might rack up a cricket score.
However, the Blues went down to 10 men midway through the second half to give Peterborough a slither of hope, as the 36-year-old Terry brought down Angol on the edge of the box, per BT Sport Football:
The visitors pulled one back in the 70th minute, with Angol flicking on Michael Smith's cross from the right for Nichols to finish.
There was to be no dramatic comeback, though; Pedro steered a finish into the corner from the edge of the penalty area 15 minutes from time for his second to put the tie to bed.
Conte praised the performances from his fringe players following his side's emphatic win and insisted Terry did not deserve to be shown a red card, per Chelsea:
Meanwhile, BBC Radio Cambridgeshire Sport provided McCann's comments:
Chelsea will return to Premier League action when they face Leicester City on Saturday, while Peterborough's next League One fixture is against Bury at Gigg Lane on the same day.