Besiktas clinched the Turkish Super Lig title with a game to spare on Sunday, topping the league for the first time since 2009 and claiming Turkey's sole automatic Champions League spot.

Driven on by over 40,000 fans inside their new stadium on the Bosphorus, Besiktas thrashed Osmanlispor of Ankara 3-1 to gain an unassailable advantage over local Istanbul rivals Fenerbahce going into the coming week's final round of games.

Brazilian centre-back Marcelo Guedes put the hosts two goals ahead with strikes in rapid succession with just over 20 minutes on the clock.

German international striker Mario Gomez, the standout player for Besiktas this season and one of the most successful foreign imports into Turkish football in recent years, added a third just after half-time.

Striker Pierre Webo of Cameroon pulled one back for the visitors in the 74th minute, but by then, the celebrations were already beginning.

Besiktas's 14th league title sparked wild celebrations in Istanbul, with fans sounding car horns in a cacophony of noise and letting off fireworks in the night sky.

Playing at their home stadium on the Asian side of the Bosphorus, Fenerbahce defeated Genclerbirligi of Ankara 2-1 but are six points behind Besiktas with only three left up for grabs.

Besiktas were the most consistent team under coach Senol Gunes, who guided Turkey to thirrd place in the 2002 World Cup, but face a challenge to attract more international stars, or even hold on to the league's top scorer Gomez, who is on loan from Fiorentina.

Despite signing Robin Van Persie and Nani from Manchester United in the close season, Fenerbahce were l;eft disappointed and coach Vitor Pereira looks likely to be shown the door at the season's end.

This campaign has been an unmitigated disaster for last season's champions Galatasaray, on their third manager this season and languishing just above mid-table despite the presence of stars like Wesley Sneijder and Lukas Podolski.

To add insult to injury, the Istanbul side have been banned by UEFA from Europe for two seasons for overspending.