Osasuna striker Sergio Leon cancelled out Ronaldo's 24th-minute opener in the 33rd after defender Tano had been carried off with a sickening double leg break. Anything other than a heavy defeat at home to Madrid would be impressive.
Real Madrid coach Zinedine Zidane admits that it is up to the club and Isco to sort out his future at the Bernabeu, but claims he remains a big fan of the schemer.
The match had a chaotic feel in the first half, and the tempo did not suit the visitors. Isco capitalises sharply on a loose ball in the area and finds the bottom corner of the far corner with a low finish.
The Pamplona side retained their endeavour and were rewarded nine minutes later as Leon found the back of the net. Mario Fernandez is also not completely fit to make the cut for the final eleven in the upcoming Real Madrid vs Osasuna tie in the La Liga 2016-17 although there are still chances of Fernandez featuring in the first eleven.
Madrid pressed after the restart, and Benzema posed a threat as the UEFA Champions League holders hunted a second strike. However, Real have failed to win away to Osasuna since 2012, having lost and drawn their last two games.
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The Spain global was found after Benzema and Casemiro combined, and the midfielder tucked away his effort just inside the post.
Second place Barcelona took advantage of Real's postponement by beating Athletic Bilbao 3-0.
With only a few days left before the actions in the UEFA Champions League kick-off yet again, Real Madrid will be looking forward to getting their team in the best possible shape.
34' - GOAL! Osasuna 1-1 Real Madrid.
Los Blancos owing to last week's fixture being postponed have had two complete weeks off and yet sit one point clear off Barcelona at the top of the table with two games in hand.