© Johannes Eisele, AFP | French President François Hollande arrives for the G20 Summit in Hangzhou on September 4, 2016
The Socialist leader would get between 11 and 15 percent of the vote according to nine possible combinations of the various candidates, according to the poll by TNS Sofres-OnePoint.
The figures suggest the run-off vote would be contested between the conservative Republicans party and the far-right National Front, a scenario last seen in 2002.
The poll was conducted between September 2 and 5 among 1,006 voters.
Hollande, mired in deep unpopularity over his handling of the economy, has yet to announce whether he will run for a second term.
In a book published last month, he was quoted as saying he had “the desire” to run, but would not put his name forward “if the signs are that it could not lead to a possibility of victory.”
Under France‘s presidential system, if no one garners an absolute majority in the first round, the two front-runners participate in a runoff.
The survey found that Le Pen and either Sarkozy or Juppé would qualify for the second round on the basis of current voting intentions.
Juppé would pick up 33 percent and Le Pen 29 percent in one first-round scenario. In another, Sarkozy would reap 27 percent and Le Pen 29 percent.
Jean-Luc Mélenchon, of the Left Party, would get between 10 and 13 percent.
The first round of voting takes place on April 23, with the runoff on May 7.
Chancellor Angela Merkel on Wednesday vowed to continue efforts to strengthen security at home and speed up repatriations of migrants who were denied asylum in Germany, but insisted the overall situation was much better now than a year ago.
Merkel, whose conservative party lost significant ground to the anti-immigrant Alternative for Germany (AfD) party in a regional election on Sunday, struck a defiant tone in a speech to parliament, denying that the influx of hundreds of thousands of migrants would cut benefits for Germans as some have feared.
She also defended her handling of German-Turkish relations and said a European Union deal with Ankara to curb the flow of migrants was necessary and could serve as a model for agreements with other countries.
(Reporting by Michael Nienaber and Madeline Chambers; Writing by Andrea Shalal; Editing by Joseph Nasr)
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