Manchester United striker Louis Saha is determined to build on his brace against Sunderland and he believes this season's Premier League title race will go right to the wire.
Saha struck twice in United's comfortable 4-0 victory over Sunderland at the Stadium of Light on Boxing Day, but the forward still sees room for improvement.
The Frenchman's season has been badly disrupted by injuries, but having helped steer United to the top of the table he is determined to repay the faith shown in him by manager Sir Alex Ferguson and his team-mates.
"After the last few games, I was a little upset with myself because I had four or five opportunities, and I could not score them," Saha told L'Equipe. "So this time I am happy.
"It is very good for my state of mind. It is also reassuring as my team-mates know they can rely on me to score opportunities. The more I play, the more I get opportunities.
"I am improving, notably on efficiency level. But in the game, I am not satisfied. I want to bring more and I know I still have a lot of work."
Saha has also revealed that United knew they had to record maximum points against Sunderland in order to place pressure on their title rivals.
"We knew Arsenal played a very complex match at Portsmouth. We had to win to go on putting them under pressure, not allowing them to make a single mistake," Saha added.
"The English league is not a sprint, it is a long marathon, where you have to be very strong mentally.
"We know the period between December and January is very difficult to manage. That is the time where some teams collapse."