Reading manager Steve Clarke believes that his players need to be at their "perfect" best in order to beat Arsenal in this Saturday's FA Cup semi-final at Wembley.
The Royals head into this weekend's encounter against the holders on the back of just one victory in their last 10 Championship games.
In contrast, the Gunners have won all of their last eight Premier League games and are favourites to reach the final for a second year in a row.
"We have to play well, the perfect game with no mistakes and have to find a way to score a goal," Clarke told BBC Sport. "In football anything is possible, it's 11 versus 11. If we can play to our maximum then we have a chance to go through."
The other semi-final between Aston Villa and Liverpool will take place on Sunday.
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