The 29-year-old hasn't played for Manchester City since their Champions League quarter-final defeat by Liverpool on April 10, and Argentina coach Jorge Sampaoli has a host of attacking options to choose from before naming his World Cup squad.
As per a report, published, in one of the leading media portal, The Sun, says, that the terror group is making calls to "lone attackers" to strike ahead of the tournament.
Their poster shows Ronaldo and Messi being beheaded from behind by masked jihadi soldiers in front of a full football stadium with the caption "Your blood will fill the ground".
The Real Madrid and Barcelona forwards are not only the biggest names in Football but also the biggest names in the world of sports.
The World Cup will take place between June 14th and July 15th.
The current threat was unearthed by cyber intelligence firm Sixgill, which monitors ISIS digital actions.
The terrorist group, in the last month, made their call to supporters in different nations to pick up arms.
Super Eagles skipper Mikel Obi has declared they can go past tough World Cup first round foes Argentina and Croatia on their way to making history in Russian Federation.
In March, ISIS had targeted Messi for the first time in which posters were revealed that showed him kneeling next to a terrorist knocked up behind bars.