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Dover bounced back from their FA Cup woe with a deserved 2-0 National League win over Guiseley at a soggy Crabble on Saturday.
With less than 41 hours since they trudged off after an extra-time defeat to Cambridge United, Dover made five changes with Steve Arnold, Jack Parkinson, Sammy Moore, Mitch Pinnock and Moses Emmanuel all handed starts.
Playing infront of a boisterous crowd of more than 3,000 - boosted by local school children handed free tickets to enjoy the club's Family and Diversity Day, which included the opening of the club's new stand - the first half-was a low-key affair, however two goals in four minutes after the break proved enough to see off the strugglers and keep Whites in the play-off hunt.
Miller's shot on the run was deflected in by Emmanuel for the first goal, with both players claiming it, though there was no doubt that Emmanuel got the second with a cool finish to keep Dover in the top-six and three points behind second place.
Leading scorer Miller had half a sight of goal in only the fifth minute when Sam Magri lofted the ball over a defender on the right flank for Miller to trap on his chest, only to mishit his attempted volley.
He had another half-chance five minutes later when he bustled inside from the byline before hammering in a cross-shot which was hacked out of the goalmouth by Connor Brown.
Chances were at a premium and Jamie Grimes got the faintest touch to an inswinging free-kick from Sammy Moore only for keeper Jonathan Maxted to gather.
A snapshot from Miller from 20 yards was straight at the keeper and midway through the half the heavens opened and Steve Arnold, in for Mitch Walker in the Dover goal, had to get down to his right to hold a skidding 25-yard shot from Jordan Preston.
Miller cut a frustrated figure in the first half and picked up a costly booking - his fifth of the season - when he went in late on defender Robert Atkinson and he could not hide his disappointment when Emmanuel and Pinnock unsuccessfully chose to go it alone rather than play him in as the half progressed.
Magri - playing his fourth game in less than nine days after Malta international duty - produced two vital interceptions in as many seconds on the edge of his own box eight minutes before the break but that was it for goalmouth action as the rain further dampened a low-key half.
After the downpour abated the breakthrough arrived less than two minutes after the interval when Miller adopted a more familiar position out wide and drove inside from the right, stepping past two defenders before firing in a low drive which looked to flick off Emmanuel leaving Maxted wrong-footed.
There was, however, no doubt about the second goal which arrived four minutes later when Jim Stevenson' speculative volley from fully 30 yards looped off a defender and over the defence for Emmanuel who clinically found the bottom corner.
Miller saw a low shot saved soon after before turning on the style with some champagne interplay with Pinnock down the right, though the ball was cleared for Moore to hook a sweet volley just wide from 25 yards.
Just after the hour Miller won and took a free-kick 25-yards out but smashed it straight at Maxted and the visitors enjoyed their best spell after that, former Wolves forward Jake Cassidy hitting the roof of the stand with a 20-yard shot, ex-Leeds midfielder Alex Purver going closer with a fizzer over the angle and Will Hatfield firing well over after being played down the right of the box as they ended without a shot on target and having never scored against Dover in the four games the sides have played.
The game ebbed away in the final 10 minutes, though Pinnock teed up Miller whose low shot was parried by Maxted who got up quickly to claw away Emmanuel's rebound too as he sought - in his opinion - a hat-trick and he also clipped just past the post from Miller's cut-back in injury-time.
Dover: Arnold, Magri (Thomas 84mins), Parkinson, Orlu, Stevenson, Miller, Pinnock, Grimes, Sterling, Emmanuel, Moore. Subs not used: Healy, Lafayette, Kinnear, Marsh. Guiseley: Maxted, Brown, Lowe, Hatfield, Boyes (Rankine 68mins), Palmer, Preston (Logan 58mins), Purver, East, Atkinson, Cassidy. Subs not used: Atkinson, Williams, Walton. Attendance: 3,018.