Derby goalkeeper Frank Fielding's inspired performance earned his side a point against Championship leaders Southampton.
He made a string of saves before being beaten by Rickie Lambert, who fired in low from the edge of the box.
Lambert's 11th goal of the season cancelled out Theo Robinson's opener, which came after just three minutes.
The former Millwall striker reacted quickest after Kelvin Davis could only parry a shot from Ben Davies.
Derby, beaten 4-0 at Leicester in their last outing, started brightly but their early goal sprung the visitors into life.
Guly do Prado fired narrowly over before forcing Fielding into his first real save.
Jose Fonte did beat the goalkeeper just before the break but Steve Davies was on hand to head over his own crossbar.
In the second half, Fielding saved an 18-yard strike from Lambert before the former Bristol Rovers striker did find the target.