Football may be on hold due to the coronavirus pandemic, but Barcelona are reportedly already planning their transfer business ahead of the window reopening.
The LaLiga champions have been short of options up top this term as a result of injury lay-offs for Luis Suarez and Ousmane Dembele and reinforcements are being sought.
Using Opta stats, we compare the form of the two players in all competitions this season and establish just who would be the better signing for Barcelona.
Whoever Barcelona bring in to lead the line, they will need to have the ability to link up with others in the final third and continue getting the best out of star man Messi.
But first and foremost, Quique Setien's side need a goalscorer that can find the net and make a difference in key games.
Both Neymar and Martinez have the ability to do just that, scoring 18 and 16 goals respectively in all competitions this term.
However, Neymar has played nine games fewer than Martinez, giving him a minutes-per-goal ratio of 106 compared to 152.
There is little between the two players in terms of where their goals are scored, each netting two apiece from strikes outside the penalty box this term.
Neymar is comfortable using both feet to find the net, though, using his left foot seven times and his right 10 times to beat the opposition goalkeeper.
Inter striker Martinez, by comparison, has only managed a couple of goals with his weaker left.
But the Argentina international is better in the air, the stats suggest, given he has scored three headed goals in 2019-20 - two more than Neymar.
The deciding factor in which of the two players Barcelona should sign may well come down to their relationship with Messi.
Neymar knows Messi well from his previous four-year stint at Camp Nou, while Martinez regularly links up with the six-time Ballon d'Or winner at international level.
In terms of pure team play, this is another category Neymar edges having assisted nine goals this season, with Martinez lagging behind on two.
BIG GAME CREDENTIALS
If Barcelona are to spend a nine-figure sum on a player, they will expect to be reimbursed with goals in big matches and at key moments in games.
It is arguably Martinez's form on the biggest club stage of them all, the Champions League, that has fuelled rumours of a move to Barcelona.
The 22-year-old scored in four successive Champions League games during the group stage, making him the fifth Argentinian player to do so, though it was not enough to prevent Inter from exiting the competition.
PSG remain alive and well in the competition and that is in large down to Neymar, who scored in both legs of the last-16 comeback win against Borussia Dortmund.
In fact, since joining the French giants in 2017, Neymar has been involved in a goal every 70 minutes in UEFA's showpiece competition.
It is that ability to have a say on the biggest matches, plus his individual brilliance and underrated ability to set up others, which just gives Neymar the edge over Martinez at this moment in time.