Here's a look at some of the other key goals Frecklington has scored at New York Stadium.
Frecklington was taking a shine to playing against Aldershot and his third goal of the season against them was the one that sent him into Millers folklore.
With the hosts already 1-0 up and heading towards League One, Frecklington coolly slotted home on the break to score the promotion-clinching goal.
He was immediately submerged by thousands of delirious Millers fans who invaded the pitch to celebrate the glory and he had the bruises to show for it.
After Ben Pringle had already lit up New York with his opener, it was Frecklington’s turn to wow the crowd.
Wednesday failed to deal with a set-piece and after Michael O’Connor passed to his midfield colleague, Frecklington shifted the ball to his right and then unleashed a rocket that flew into the top corner.
It was fit to win any match, but it gave the Millers a first home win over the Owls in 37 years.
In terms of the spectacular this doesn’t come close to some of others, but its importance cannot be understated.
With the play-off semi-final finely poised in the second leg at 1-1 on the night and 2-2 on aggregate, Frecklington came up with a fine header that gave the Millers a crucial advantage.
It was typical of him as well, as he arrived late to get on the end of a pinpoint Pringle cross and placed his effort into the bottom corner.
The hosts went on to book their place at Wembley in arguably the most iconic night at their new home and the rest is history.
Reading (April 28, 2015)
Survival in the Millers' first season back in the second tier had been brought into question following a three-point deduction, but a famous night under the New York lights put the matter to bed.
And of course it was Frecklington who provided what ended up being the decisive moment. Minutes after Matt Derbyshire had put the Millers in front, the midfielder made it two when he perfectly timed his arrival at the back post to tap in Danny Ward's cross.