Real Madrid have confirmed Karim Benzema is suffering from a hamstring strain following the striker's substitution at half-time in the first leg of the Champions League semi-final away to Manchester City on Tuesday.
France international Benzema was replaced by Jese Rodriguez as Madrid drew 0-0 at Etihad Stadium, leaving everything to play for in the second leg at the Santiago Bernabeu on Wednesday.
Madrid on Thursday confirmed the nature of the 28-year-old centre-forward's injury but did not provide a timeframe on his likely return.
"After tests today at University Hospital Sanitas La Moraleja, the player Karim Benzema has been diagnosed with [a] myofascial strained right hamstring," the club said in a statement.
"Hopefully they can be in the second leg but we have to take it day by day for them," Zidane said of the attacking duo after the stalemate in Manchester.
"We're going to try and get them fit for [the second leg], that's our plan but I can't assure you of anything right now. We obviously want them back."
