UPDATE 2-Soccer-Classy Spain secure World Cup spot

* Spain seal World Cup finals spot

* Fabregas sets up easy win, Cazorla also on target

* Mata completes scoring in stoppage time (adds quotes)

By Iain Rogers

MERIDA, Spain, Sept 9 (Reuters) - Spain clinched their place at next year's World Cup finals when a clinical strike from Cesc Fabregas set them on their way to a slick 3-0 win over visiting Group Five rivals Estonia.

The comfortable victory on a sweltering night at the Estadio Romano in Merida meant Vicente del Bosque's side qualified as group winners with two matches to spare and eight wins out of eight.

"It was a good day and even if we perhaps weren't at our best it was enough to secure qualification," Del Bosque said at a news conference.

The European champions found it difficult to play their usual controlled passing game in the early stages on a cramped pitch at the tiny arena and Estonia created a couple of good scoring chances.

Konstantin Vassiljev skipped past Gerard Pique on the left wing in the 17th minute and sent over a fine cross but Tarmo Kink headed wastefully over the bar before Sergei Zenjov just failed to turn in a centre from Andres Oper.