Radamel Falcao is proving that the Premier League clubs linked with him in the summer made a mistake in not securing his signature as he continues to dominate Ligue 1.
Manchester United and Chelsea were both linked with possible moves for the Colombian striker, who was coming to the end of an incredible two-year spell at Atletico Madrid in La Liga.
Before moving to Spain he spent three years with Porto where his reputation as formidable goalscorer was forged as he led them to a league, cup and Europa League treble in 2011 under current Tottenham Hotspur boss Andre Villas-Boas.
Falcao did not lose his eye for goal at Atleti and scored and incredible 52 times in only 68 league games, though the unbelievable form of both Cristiano Ronaldo and Lionel Messi in the same league meant his exploits were overshadowed somewhat.
AS Monaco's billionaire owner Dmitry Rybolovlev was probably the deciding factor in taking the 27-year-old to Ligue 1, as he is spending vast sums in trying to take the club from the principality back into the Champions League.
Competing with such spending probably put Chelsea and Manchester United off going in for Falcao, but they both have the capacity to match Monaco and must now be thinking they made the wrong decision not to.
Despite going to a new country, a new league and playing with new teammates, Falcao has already notched seven times in eight games and has fired his side to the top of the table.
This form is in contrast to another big money switch to France in the form of Edinson Cavani; the Uruguay international has scored three times since his £55million switch to PSG and has not settled in quite as quickly.
Chelsea have had a stuttering start to the season under Jose Mourinho and one of his main problems has been a consistent presence in the centre-forward position, with Fernando Torres and Samuel Eto'o so far failing to impress greatly.
Falcao would have been the perfect addition to Mourinho's squad and would have provided the cutting edge at the point of Chelsea's attack, which feels like it is missing at the moment and arguably has a lot to do with the only winning three out of six in the Premier League so far this season.
Meanwhile, Manchester United are having all kinds of trouble and if David Moyes had any hopes of a solid and uneventful start to his reign at Old Trafford they have well and truly gone out the window.
A loss at home to a lesser team like West Brom wasn't unimaginable under Sir Alex Ferguson, but the nature of the performances will be the most worrying thing for Manchester United fans as they have looked, well, a bit toothless.
The absence of Robin van Persie for two and a half matches obviously didn't help, but even when he was playing there is the feeling that something is missing going forward for the Red Devils.
Falcao is better known for his ability to score goals, something Van Persie does pretty well too, but he is also effective as a creative force; his physicality and mobility make him a perfect partner for any striker and he would have added an extra dimension to Moyes' front line.
While there were signs of Torres coming back to life in the draw with Spurs on Saturday, before getting sent off, United appear to have serious problems that need addressing soon or they risk falling into a spiral of negativity, fuelled by doubts over a Ferguson hangover.