will go head-to-head with world-record holder Eliud Kipchoge at the London
Marathon after the Kenyan confirmed he will return to the capital on Monday.
Kipchoge ran the fastest marathon in history in Berlin
last year, having won his third London crown earlier in the season.
He beat Farah into third on that occasion, but Farah, 35, has since gone on to take a major title at the distance in Chicago and has emerged as a serious player across 26.2miles going into the second half of the Olympic cycle.
Kipchoge, the 2015, 2016 and 2018 London champion, said: 'I had a memorable 2018, winning the Virgin Money London Marathon and then setting a new world record at the Berlin Marathon. I'm hoping that 2019 is just as good to me.
'I am looking forward to racing Sir Mo Farah again. He is a great champion and proved in Chicago that he can win a major marathon so I relish the battle with him and also the many other great athletes that I'm sure will once again be on the start line in London.'
Ethiopia Shura Kitata, who finished second in London behind Kipchoge and ahead of Farah, also signed up on Monday for his return.