Arsenal boss Arsene Wenger doesn't expect to face a full-strength West Ham United in their FA Cup tie.
Wenger has plenty of empathy for West Ham manager Gianfranco Zola, whose side are struggling to keep out of the relegation zone.
The Hammers battled back from 2-0 down to rescue a point from their league meeting between the two sides in October.
"I think the pressure on Zola is more on the championship, because of West Ham's position, and less on the FA Cup," said Wenger. "It is more important that they keep their position in the Premier League."