The Women's Super League is fast-becoming the ultimate destination in women's football, with international players increasingly tempted by the lure of the English premier division and top clubs in the league beating European teams to sign the best players in the game.

But good luck finding out any details on transfers beyond which club did the signing. Such is the transparency, or lack thereof, in women's football transfer culture that, when contacted by Telegraph Sport, the Football Association were unable to provide transfer data that separated WSL and Championship sides. One is a league of full-time professionals, the other of mostly part-time players.

Little is known of the most high profile deal of the last few years: marquee Chelsea signing Sam Kerr. Considered by many to be the best in the world, the Australian forward was reportedly courted by Barcelona, PSG and Lyon before choosing west London in November.

Fifa's latest Global Transfer Market report revealed that only $652,032 was spent on transfer fees in the women's game in 2019. Although an increase on 2018 figures, very little cash is actually exchanging hands between clubs. Less than four per cent of the 833 total global transfers in the women's game involved a fee last year, and 86 per cent involved an out-of-contract player.

Kerr was one such example, and an agent told Telegraph Sport it is not uncommon in the women’s game given clubs’ limited finances: "If you're Tottenham and you can't buy your players a fridge, you're not going to be paying transfer fees, are you?"

Another agent added: "There's not enough finance within the game, still, to generate a transfer fee figure that will entice. I think you're more likely to see players sign a contract whereby they've got enough flexibility for the term to expire. Clubs aren’t earning millions from TV broadcasting revenues. Therefore, they can’t afford to go and buy players."