Madrid - Regardless of who wins the Spanish league title, Lionel Messi and Cristiano Ronaldo will be battling it out to the end.

Real Madrid don't have much chance of keeping Barcelona from winning the league, but Ronaldo is making a strong run to snag the scoring title from Messi with nine matches remaining.

Ronaldo added another four goals in Madrid's 6-3 win over Girona on Sunday, giving him 22 for the season. That is only three fewer than Messi, who scored his 25th in Barcelona's 2-0 win over Athletic Bilbao.

"Hopefully he can catch him," Madrid coach Zinedine Zidane said of Ronaldo.

"It's important for him and for us, too. When he's playing well, the team plays well. He transmits an important and positive energy to the group. He's always in very good form come the end of the season. He's got an eye for goal and he'll never lose that."

Ronaldo has scored at least one goal in his last eight matches in all competitions. He has 21 goals in his last 11 games.

"He's unbelievably ambitious and that comes across in every training session and in everything he does on the field," Zidane said.

"If he has a penalty in training, he will take it with the maximum concentration. It's what makes him different from the rest."

Ronaldo is trying to keep Messi from winning the top-scorer's "Pichichi" trophy for the second consecutive year. The Argentina forward scored 37 league goals last season, 12 more than Ronaldo.

Ronaldo hasn't won the award since 2014/15, when he had 48 goals. That was still shy of Messi's record of 50 goals in 2011/12.

Despite's Ronaldo's impressive run, Madrid's chances of repeating as league champions remain slim.

Madrid trail Barcelona by 15 points after 29 matches. The teams will play again in May in a league match at Camp Nou. They could also meet in the Champions League semi-finals or the final.

Messi scored twice against Madrid this season - in a 3-1 loss in the Spanish Super Cup final at the beginning of the season and in a 3-0 win at the Santiago Bernabeu Stadium in a league match late last year. Ronaldo scored against the Catalan club in that Spanish Super Cup game.

Messi has scored at least a goal in his last six matches in all competitions. He has scored at least 25 league goals in nine consecutive seasons with Barcelona.

"Messi is the best player in the world and he shows it game after game," Athletic defender Unai Nunez said after his team's loss to Barcelona on Sunday.

Ronaldo has scored at least 25 league goals in the last eight seasons. He scored four or more goals in a match with Madrid eight times.

"He's on unbelievable form at the moment," Madrid forward Lucas Vazquez said of Ronaldo.

"He helps the team with his work, goals and assists. Everyone benefits from it."