PARIS, (Reuters) – Girondins Bordeaux host surprise  package Montpellier in a top-of-the-table Ligue 1 clash on  Sunday knowing they must keep up the momentum as they struggle  to cope with the pressure of battling on three fronts.

The champions, who ended Olympique Lyon’s seven-year reign last season and enjoyed a nine-point lead before Christmas,  still top the table on 51 points with two games in hand but are  only ahead of promoted Montpellier on goal difference.

The postponement of their last two league games, run to the League Cup final against Olympique Marseille on March 27 and return leg of the Champions League last 16 tie with Olympiakos,  which they lead 1-0, means they face a gruelling schedule.

They are also being chased by improving Lyon and Marseille  with the former having recovered their winning touch after a disappointing first half to the season.

Lyon could even reclaim top spot with a win at second-bottom Boulogne tomorrow (1800 GMT) and are confident they can play  a leading role until the end of the season.

GOOD PHASE
“I always said we could only play better. We are going  through a very good phase and some people could be on for a big  surprise,” international defender Jean-Alain Boumsong told  reporters after Lyon beat Nice 2-0 last weekend.

It was their seventh game without defeat — including six  wins — since the winter break helping them climb from sixth  spot, 13 points off the pace, on Dec. 23 to third place and  within two points of the leaders.

“This sequence of good results has brought us confidence but  we have to keep up the rhythm until the end of the season,” said  coach Claude Puel.

Marseille, fourth on 48 points after three straight wins,  host ninth-placed Lorient on Sunday full of confidence after  beating FC Copenhagen in the last 32 of the Europa League and  thrashing arch-rivals Paris St Germain 3-0 away last weekend.

PSG are now 12th on 33 points and in crisis after one of  their fans suffered a life-threatening head injury in a fight  between rival groups of supporters before Sunday’s kick-off.

Chairman Robin Leproux said on Tuesday that “a new level of  urban guerrilla warfare” had been reached and has ordered the  club to stop selling tickets to supporters for away games.

PSG visit Racing Lens, also with 33 points, tomorrow.