Not only was this a club record 13th straight win, it also sees the rampaging Paris side equal Nantes' 20-year-old record of 32 league games without defeat. PSG have not lost in Ligue 1 since a 3-2 defeat to Bordeaux on March 15 last year.
"There's been a great deal of talk about the record and it helped me motivate the players, even if they don't really need that," PSG coach Laurent Blanc said after the game.
Saint Etienne coach Christophe Galtier had joked before the game that Ibrahimovic must hate his team so often does he score against them. And the giant Swede duly clinched his 18th league goal of the campaign on the hour with a certain venom before scoring his 19th, a simple tap in, with the last kick of the game.
"This team seems unbeatable," Galtier said. "We've never seen anything like it in this league, not even Lyon when they were dominating everything."
Also Read
The hosts threw everything they had at the champions and drew several key saves from 'keeper Kevin Trapp, notably through captain Franck Tabanou.
"My players showed great courage and we shook them up. But we came up against a good 'keeper," added Galtier.
PSG's Argentine winger Angel di Maria was a constant menace with his runs and passes and set up Ibrahimovic for a cheeky back-heel shot by lobbing the static defence.
exhibition of PSG's masterful passing game found the striker unmarked at the back post.
Earlier Sunday, Caen continued their fine season by beating Nice 2-0 as the visitors, who sold 49 percent of their shares to a mystery Saudi prince and English businessman this week, failed in their bid to move second.
The hosts took the lead when Julien Feret teed up Rony Rodelin to drive in his sixth league goal of the season. Andy Delort doubled the lead from the penalty spot before half-time to leave Nice in disarray.
Surprise package Angers inflicted a 3-0 defeat on Monaco on Saturday to reignite their unlikely challenge for a Champions League spot. Cheikh N'Doye deflected in Romain Saiss's effort after Monaco failed to clear a corner, N'Doye doubled the advantage before half-time as Angers took utter control, before gloss was added to the scoreline in the second period by Mohamed Yattara.