England legend Peter Shilton has been impressed by Cardiff City goalkeeper David Marshall this season.
Shilton, England's most capped player with 125 appearances, says the Scotsman is key to Cardiff's survival.
"He's going to play a big part in Cardiff staying up," said Shilton to BBC Sport.
"When you're at the bottom of the league it's a lot harder for a keeper than when you are in a side doing well. You're under pressure week in, week out, the side's not playing well, the defence loses confidence and you've got to be there trying to pick up the pieces and win them games.
"Marshall's had a great season and let's just see what happens between now and the end of the season because he's going to play a big part."
