Capital One Cup 2015: Scores, Results from Thursday's League Cup 1st Round

Doncaster emerged as 4-2 penalty-shootout victors over Leeds United on Thursday evening after drawing 1-1 after extra time, becoming the last team to book their place in the second round of this season's Capital One Cup.      

They'll face off against Ipswich Town in the next round after learning the identity of their second-round opponent in Thursday's draw, per the Mirror's Joe Mewis.

Leeds teenager Lewis Cook opened the scoring for Uwe Rosler's men but failed to make it to half-time after seeing red for his two-footed challenge on Aaron Taylor-Sinclair not long after Andy Williams netted a Donny equaliser.

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After claiming a 1-1 draw against Burnley in his first league game in charge of the Whites, Rosler came to Keepmoat Stadium eager to boost Leeds' spirits with a win in Cup competition.

Doncaster were motivated to do well on home turf, however, after advancing to the third round of the League Cup last season, and the official Capital One Cup Twitter account confirmed Leeds' huge disappointment:

Not least because of their pristine yellow away strip, the visitors started as the far brighter outfit, pressing high up the pitch and keeping Doncaster fenced in their own half for the most part.

It took Rosler's side just 13 minutes to break the deadlock, however, when Mirco Antenucci sprung down the left wing before seeing his shot parried into the path of an onrushing Cook, who gleefully converted into an open net.

That was the 18-year-old's first senior goal for the club, sending the travelling support into raptures as Leeds placed one foot in the next round of the Capital One Cup.

And it proved to be a night of firsts as Williams bagged his first Donny goal 15 minutes from the break, converting from the spot after Cedric Evina was bundled over in the Leeds box. The Sheffield Star's Liam Hoden tipped it as opportune timing:

The first-half drama wouldn't end there, though, and young Cook swiftly went from hero to villain, overextending a challenge on Taylor-Sinclair and making too much contact without enough of the ball.

The FA's Gary Stonehouse outlined the Thespian-esque nature of Cook's evening, emotions understandably running high for a player at the very beginning of his career:

The two teams went in level at the break, and the sense was that manager Paul Dickov's men could complete the upset, needing only to keep their form and choose their breaks wisely, lest they be caught out themselves.

Leeds goalkeeper Ross Turnbull wasn't threatened as regularly as the home fans might have wanted, though, as Doncaster oddly struggled to impose themselves following Cook's dismissal.

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Both managers made use of their substitutions in a bid to gain a tactical edge. But the power balance remained largely unchanged, with Rovers carving out the better movements on goal.

Rosler's side wouldn't budge, though, and made it to the end of 90 minutes level at 1-1, with KICK TV pointing out a significant record was on the line at the Keepmoat:

Leeds could hold their heads high at managing to make it through a gruelling 120 minutes and even asserting themselves more as the fixture wore on, despite enduring a one-man disadvantage for the majority.

All that came to nought, though, after Sam Byram and Chris Wood missed their attempts from the spot, making Leeds the ninth Championship outfit to fall out of this season's League Cup at the hands of lower-league opponents.

Rosler will be bitterly disappointed with the result considering his side did so well to limit Doncaster's threat on goal following Cook's dismissal, despite those efforts coming to nothing in the end.

The underdogs will have to knock out another Championship foe if they're to make it further in the competition, with the visit of Ipswich promising to thrown another big obstacle in their path.