Now a federal judge has ruled that there was sufficient evidence for a jury to hear the case that the company's weed-killer, still sold across the United Kingdom, is causing cancer.
Citing expert testimony from three doctors who spoke on plaintiffs' behalf, Chhabria wrote in his ruling, "the opinions of these experts, while shaky, are admissible".
"Moving forward, we will continue to defend these lawsuits with robust evidence that proves there is absolutely no connection between glyphosate and cancer", Partridge said in a statement.
"The scientific evidence is overwhelming that glyphosate-based products do not cause cancer and did not cause Mr. Johnson's cancer", Lombardi said during his opening statement.
Chhabria said the evidence, "viewed in its totality, seems too equivocal to support any firm conclusion that glyphosate causes" non-Hodgkin's lymphoma.
Dewayne Johnson's lawsuit is the first case to go to trial among hundreds of lawsuits alleging Roundup caused non-Hodgkin's lymphoma.
Donald Trump describes Boris Johnson as future PM and attacks Sadiq Khan
He also took aim again at Khan, saying: "I think allowing millions and millions of people to come into Europe is very, very sad. He maintained that border security is a national security problem and that "they have to stop terrorists crossing borders".
Monsanto brought in its own expert, Lorelei Mucci, a cancer epidemiologist at the Harvard T.H. Chan School of Public Health, who praised the 2017 study.
In 2014, Johnson was diagnosed with non-Hodgkin's lymphoma, a cancer that affects white blood cells.
The Monsanto brand may disappear soon, but claims that its most famous weed killer causes cancer will live on for years in court.
Claims against Monsanto received a boost in 2015, when the International Agency for Research on Cancer - part of the World Health Organization - announced that two pesticides, including glyphosate, are "probably carcinogenic to humans". Farmers in California have been using the weed killer on more than 200 types of crops.
A flurry of lawsuits against Monsanto in federal and state courts followed, and California added glyphosate to its list of chemicals known to cause cancer.
The U.S. Environmental Protection Agency last September concluded glyphosate is likely not carcinogenic to humans. A draft report by the agency a year ago concluded the herbicide is not likely to be carcinogenic to humans.
- Tesla sells 200,000th vehicle , starting phaseout of federal tax credits
- Coming up: Partial solar eclipse on Friday the 13th
- Barcelona sign €35m Lenglet from Sevilla
- Honey Smacks recall: 8 sickened in Pennsylvania amid salmonella outbreak, CDC says
- Game of Thrones racks up 22 Emmy nominations
- 'A great meeting': Trump wants North Atlantic Treaty Organisation allies to double defence spending
- Husband finds bodies of wife, mechanic in auto
- Hurricane Chris still speeding, now a Category 2 storm
- Trump ready to help some North Atlantic Treaty Organisation states buy US arms
- Antonio Conte: Chelsea sack Italian after two years in charge