Real Madrid boss Jose Mourinho played down the significance of conceding an away goal to Manchester United in their last-16 Champions League encounter.
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The tie stands at 1-1, after Cristiano Ronaldo's header cancelled out Danny Welbeck's opener in Madrid.
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Real boss Mourinho said: "Everything is open for the second leg and I think this will go to the last minute.
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"If you ask me for a percentage, it's 50/50. We can score more than one goal over there [at Old Trafford]."
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In an open first half, Welbeck's header put United in front after Fabio Coentrao had hit the post, but Ronaldo scored against his old club with a towering leap before the break.
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There were further opportunities for Coentrao and Robin van Persie in the second half but the away goal gives United a slender advantage going into the return fixture on 5 March.
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United's David de Gea was the busier of the two keepers and as the game wore on it appeared United were content to settle for a draw.
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And Mourinho said: "It was not a surprise, the match or the result. It was tactical for them not for us, they changed the way they played and [defended deep] in the second half.
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"I don't think Rio Ferdinand or Jonny Evans put one foot in our half and they were waiting for a set-piece and a counter attack to score a second goal. We are a team that normally has to chase the game but they did well and the result is open."