Icardi saves his side by hitting a last-gasp goal, Ramos sent off for the first time in france
Match Report
Mauricio Pochettino's side, who had Sergio Ramos sent off, have 46 points from 19 games with Nice in second place 13 points behind after a 2-1 comeback win at home against RC Lens.
Third-placed Olympique de Marseille, who have a game in hand, trail Nice on goal difference after being caught cold at the Velodrome in a 1-1 draw against Stade de Reims, Dimitri Payet salvaging a point with a penalty eight minutes into injury time.
Stade Rennais are fourth on 31 points after a 2-1 defeat at Monaco.
Elsewhere, Montpellier consolidated their fifth place with a convincing 4-1 home victory against mid-table Angers and champions Lille moved up to eighth when Jonathan David's late goal gave them a 3-2 victory at Girondins de Bordeaux.
The game between Clermont and Racing Strasbourg was postponed because of foggy conditions.
Match Events
14' Navas defended the goal
27' What a pity! Messi hit the post
39' GOAL! Lorient 1-0 PSG (Monconduit)
52' PSG failed to equalize the score
65' Di Maria shot wide out
80' Yellow Card! Ramos booked
84' Second Yellow Card! Ramos sent off
91' GOAL! Lorient 1-1 PSG (Icardi)
Line-ups
Lorient XI: V. Le Goff, Monconduit, P. Nardi, J. Laporte, L. Abergel, H. Mendes, A. Laurienté, M. Jenz, T. Moffi, E. Le Fée, D. Faissal Ouattara
Subs: M. Dreyer, J. Hergault, A. Grbić, Igor Carioca, L. Pétrot, Boisgard, B. Mouazan, T. Le Bris, Fadil Soumanou
PSG XI: Messi, Wijnaldum, Di Maria, Navas, Herrera, Gueye, Marquinhos, Icardi, Kimpembe, Hakimi, Nuno Mendes
Subs: Ramos, Danilo Pereira, Diallo, Donnarumma, N. Bitumazala, E. Michut, Xavi Simons, E. Bitshiabu, S. Yansane