Derby County and Middlesbrough had to settle for a draw at Pride Park with neither side able to find a way to break the deadlock.
The Rams looked the more fluent side before the break with Max Bird twice foiled by keeper Joe Lumley.
Kelle Roos saved with his feet to deny Uche Ikpeazu at the other end, but the Middlesbrough attack did little to unsettle the Derby central defensive pairing of Phil Jagielka and Curtis Davies - with a combined age of 75.
The second half was a different story with Boro carrying a far greater threat and sub Jonny Howson forced Roos into a smart save to his left before Matt Crooks glanced a header against the bar and over from Marc Bola's cross.