Brazilian Oscar is part of the midfield orchestra which has Chelsea within reach of the Premier League title. Just how much is the former Internacional star worth after his second impressive season in England?
After participating in 34 league games in 2012-13, Oscar looks set to complete a similar number this time around, having notched 31 thus far.
The 22-year-old has already doubled his goal tally from the last campaign, with eight EPL strikes to his name this season, along with five assists, via transfermarkt.com.
He also has two FA Cup goals and one Champions League goal, with a further five assists in the European competition—a handy return all round.
Oscar is also a regular fixture in the Brazilian national team, where he has scored nine times in 29 appearances.
It is as a playmaker that Oscar is most valuable, however.
According to Squawka, the midfielder has an average pass accuracy of 83 per cent, and he has created a total of 43 chances in 2013-14.
Oscar was signed by Chelsea from Internacional in July, 2012, for a fee in the region of £25 million, as per BBC Sport.
At that time, he was a 20-year-old with a burgeoning reputation and had accumulated six caps for the senior Brazil national side.
The Brazilian has been in superb form for the Blues in 2013-14, demonstrating that, even at his relatively young age, he is already good enough to perform consistently at a world-class level.
Along with his midfield partners, Eden Hazard and Willian, he has helped transform Chelsea into a side that can dazzle in attack as well as spoil in defence.
The fact that Hazard has blossomed as an offensive force this season has taken some of the attention away from Oscar's notable, but less spectacular improvement in his second EPL campaign.
If the South American continues to develop along a similar trajectory over the next three or four years, he has the potential to be one of the world's most valuable midfielders by the time he is in his late 20s.
There has been speculation in the press that mega-rich French club Paris Saint-Germain may attempt to coax Jose Mourinho into selling Oscar at the end of the season.
Martin Lipton of the Daily Mirror reports that PSG are set to offer around £40 million for the player and are also interested in Hazard.
Mourinho may have been joking when he said it would cost £300 million to buy the pair, but his comment may be an indication that the figures being mooted are not high enough to tempt him.
Considering that Oscar is already an integral member of one of the strongest sides in Europe, added to the fact that he is only 22 and has plenty of scope for improvement, it is reasonable to conclude that he would command a huge transfer fee if he were to be sold.
Mourinho sniffed at £40 million, so one would think that any side wishing to secure the Brazilian's services would need to offer at least £10 million more than that to even raise the Portuguese coach's eyebrows.
Estimated value: £50-£60 million.