Bayern Munich coach Vincent Kompany and his Bayer Leverkusen counterpart Xabi Alonso on Friday joined the growing chorus calling for action on player workload, amid talks of strikes.
"It may have looked pretty easy, but it's really not," Alonso told reporters after his team cruised to four first-half goals to break the Dutch resistance.
Bayer Leverkusen's 35-game unbeaten Bundesliga run came to an end in their last game and manager Xabi Alonso hopes the short time he has had with his players will be sufficient to get back to winning ways.
Granit Xhaka praised his side's "pure mentality" as Florian Wirtz's goal in the 11th minute of stoppage time snatched a 3-2 win for reigning champions Bayer Leverkusen at Borussia Moenchengladbach in Friday's Bundesliga opener.
Bayer Leverkusen coach Xabi Alonso said Thursday that Bayern Munich are the Bundesliga title favourites this season, despite his side's incredible league and cup double last campaign.
Eyebrows were raised when Xhaka arrived from Premier League runners-up Arsenal at the start of last term, with Leverkusen coming off a fifth-placed finish and with rookie coach Xabi Alonso preparing for his first full season as a first-team head coach.
"What we did in the last 10 or 15 minutes, with a man down, to score the equaliser -- it was unbelievable," Leverkusen coach Xabi Alonso said after the match, praising his side's "huge spirit".
Vincent Kompany was officially presented as Bayern Munich's new coach on Thursday, insisting he did not share the football world's surprise at his appointment.
Bayer Leverkusen's German league and Cup double was the result of players keeping faith in the team throughout what turned into a dream season, their coach Xabi Alonso said on Saturday.
Leverkusen head into Thursday's home first leg against West Ham in the Europa League quarter-finals unbeaten in 41 matches this season, with 36 wins and five draws.
Bayer Leverkusen are just three points from a first Bundesliga title after a 1-0 win at Union Berlin on Saturday, with Bayern Munich letting a 2-0 lead slip to lose 3-2 at Heidenheim.
Bayer Leverkusen coach Xabi Alonso insisted Friday it was "still too early" to talk about the Bundesliga title despite his team being 13 points clear at the top of the table.
Bundesliga leaders Bayer Leverkusen overwhelmed second division club Fortuna Dusseldorf 4-0 on Wednesday to reach the German Cup final and stretch their unbeaten run to 40 matches across all competitions this season.
Last-gasp goals from Robert Andrich and Patrik Schick kept Bayer Leverkusen's undefeated record this season alive with a 2-1 home win over Hoffenheim on Saturday.
Saturday's "Der Klassiker" between Bayern Munich and Borussia Dortmund will unusually not be about controlling the title race or taking over the top spot in the German Bundesliga.
Bayer Leverkusen boss Xabi Alonso ended speculation of a potential move to one of his former clubs Liverpool or Bayern Munich in the close season when the Spaniard said on Friday that he was committed to staying with the Bundesliga leaders.
Florian Wirtz scored after 84 seconds as Bayer Leverkusen made it 38 games unbeaten in all competitions with a 3-2 victory in Freiburg on Sunday.
Nathan Tella and Florian Wirtz scored as Bayer Leverkusen beat 10-man Wolfsburg 2-0 on Sunday to edge their team closer to a maiden Bundesliga title.
Xabi Alonso has taken Bayer Leverkusen to the brink of their first Bundesliga title, but the rising star of European coaching could soon be on the move to Liverpool or Bayern Munich.