• Millions spent since Jan 20031. Chelsea 6732. Man City 5723. Liverpool 4144. Man United 3525. Tottenham 3506. Arsenal 2147. Aston Villa 2018. Sunderland 1879. Newcastle 17410. Everton 12911. West Ham 12312. Wigan 11013. Fulham 10714. Portsmouth 10015. Birmingham 9216. Blackburn 8717. Stoke 8418. Bolton 7619. Boro 7120. West Brom 64Source: DeloitteLONDON - Premier League clubs have spent more than £4.4bn on players since the transfer window was introduced 10 years ago with this summer’s spending set to match last year’s figure of more than £450m.Roman Abramovich’s billions have made Chelsea the Premier League’s biggest spenders over the past decade with £681m going on transfer fees.Manchester City (£572m) and Liverpool (£414m) occupy second and third place, according to research conducted by Deloitte’s Sports Business Group.Going into the final week of this summer’s window, spending is on a par with this time last year with some £350m spent by Premier League clubs since the end of the season.“Over the last 10 years, Premier League clubs have invested over £4bn in transfer fees to bring the best playing talent to the league,” Dan Jones, a partner in the Sports Business Group at Deloitte, said.“Testament to their success is the strength of the league and its commercial appeal, shown by the recently announced broadcast deal. With spending this summer set to be at a similar level to that of 2011, significant investment in playing talent, both in terms of player transfer fees as well as wages, looks set to continue in both the January and summer transfer windows.”Once again, Chelsea look set to lead the way this summer having spent more than £75m on Eden Hazard (£32m), Oscar (£25m), Victor Moses (£9m) and Cesar Azpilicueta (£7m). Manager Roberto Di Matteo remains in the market for a striker.But none of Arsenal (Santi Carzola £16m, Olivier Giroud £10m, Lukas Podolski £11m), Manchester City (Jack Rodwell £15m), Manchester United (Robin Van Persie £24m and Shinji Kagawa £12m), or Liverpool (Fabio Borini £11m, Joe Allen £15m, Oussama Assaidi £3m) have come close to matching the £50m plus each club spent last summer.