And just two minutes later United were in front thanks to a brilliant finish from Klich who received the ball on the edge of the area from Pablo Hernandez and then produced a gem of a shot into the bottom right corner for his second goal in two games.
Derby were presented with a good chance in the third minute when a mishit effort from Martyn Waghorn found Mason Mount in the area but the Chelsea loanee could only fire his shot wide. Tom Lawrence's direct running was too much for Luke Ayling, the Leeds right-back bringing down the Welsh global outside on the edge of the penalty area.
Tom Lawrence hit back for Derby when his swerving free-kick deceived Leeds keeper Bailey Peacock-Farrell and evaded his dive for the ball to end in the net.
Hurricane Hector to pass just south of Hawaii
Hector's strongest winds are confined to about 40 miles from the eye and are not expected to affect the island. Hawaii County officials declared a precautionary state of emergency ahead of the storm.
From the opening exchanges, it was clear that this game was always going to one that had goals in it.
But he feels it will be interesting to see how Leeds cope away from home, where Derby should draw energy from the crowd, and has urged his players to make the most of it.
Former England forward Jay Rodriguez scored twice as relegated West Bromwich Albion got their first win of the season in a sensational 4-3 victory at Norwich City. Carson was called into action to deny Roofe at point-blank range with Tomori making a last-ditch block to deny Ayling on the rebound.
England vs India, 1st Test, Day 2: 5 Talking Points
With just two days and a session left in the Test match, England have done well to all but take an Indian win out of the equation. While Chris Woakes and Johnny Bairstow were tormenting the Indian bowlers, Kohli had to leave his troops to treat his sore back.
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Stolen Plane Crashes In Seattle, Fighter Jets Scrambled
The incident closed the Seattle airport to arrivals and departures for a short time, but flights have since returned to normal. Alaska Airlines said the suspect was a ground service employee who helps de-ice planes and direct aircraft to gates.