Bayern then took full advantage of their title rivals' slip-up with a 3-1 win over Schalke at the Allianz Arena, which moved the champions to within five points of Dortmund.
And James says Lucien Favre's side will be only too aware that they cannot afford to drop more points before they face Bayern in Munich on April 6.
50 - @BlackYellow have 50 points after 21 games - only once a team with 50+ points after 21 games didn´t win the Bundesliga (Schalke in 1971-72, also being 5 points ahead of Bayern at this stage). Champions? #Bundesliga pic.twitter.com/sIakfZwbD7— OptaFranz (@OptaFranz) February 9, 2019
"They know if they slip up they've still got to come here, so they're under pressure too," the Colombia star told the official Bundesliga website.
"We always are [under pressure]. I think we're going to maintain a high level and I think it's Dortmund who
Bayern's day pic.twitter.com/V5jAyqaFpj— Bundesliga English (@Bundesliga_EN) February 9, 2019