Speaking in the post-match conference after the game against Werder Bremen, the German coach knew that Dortmund could very well win against Borussia Monchengladbach later in the day and reclaim their Bundesliga title. The Munich-based side won their match 2-1 courtesy of a last-minute winner by Franck Ribery which prevented any early celebrations by their rivals.
Heynckes was unperturbed by Dortmund's chances of winning the league, which were realised after their 2-0 win over Gladbach, and he was instead interested in talking about his players' impressive overall performance this season. He pointed out that the Bavarians have been active in Europe as well as playing in the league and he commended how well his players continued to give their utmost despite the toll that their European exertions must have taken on their energy and focus.
"Playing every third or fourth day isn't easy, which is why I rotated my squad. I'm satisfied with our attitude and determination," Heynckes said.
"The substitutions had a positive effect on our game. Werder had good chances, but we deserved the win. It was a morale-boosting victory."
Bayern hold a one-goal lead from the first leg of their Champions League semi-final against Real Madrid. Los Merengues are in a buoyant mood after their Clasico win over Barcelona on Saturday all but assured them of winning the La Liga title.
But the Bavarians are not fazed by the challenge of sealing their progress to the final even if they have to play in the fearsome surroundings of the Santiago Bernabeu where thousands of fans will be cheering on the home side.
"We go to Madrid full of confidence and belief, because we're always capable of scoring away from home," Heynckes said.
"I'm optimistic about Madrid, and so are my players."
There were rumours of a bust-up between Franck Ribery and Arjen Robben with the Frenchman said to have punched his team-mate in the dressing room after the mid-week game against Real. Bayern refused to comment on the matter but it has been reported that Ribery earned a 50,000 euro fine by the club for lashing out on Tuesday.
The two will need to sort their differences and Bayern will need to turn their attention for Wednesday's match against the Spanish league leaders. Should they win, they will have the opportunity to loft the trophy on home soil as the Champions League final will take place in the Allianz Arena on May 19.