Derby County boss Billy Davies has warned his players to remain focused after their 2-1 play-off semi-final first leg win at Southampton.
A Steve Howard double has put the Rams in pole position for a Wembley date, but Davies remains cautious.
He said: "We won't be complacent as we know it is only half-time.
"We came here to put ourselves in contention for the second leg and that's what we've done with a very good result.
"It's your worst nightmare to come and go behind early on, but we did and they were two great goals from Steve.
"We've had a few players coming back from injury and today we've put in a performance that we know we are capable of with those players."