Before she withdrew with injury, Kipyego was set to debut in the marathon as a U.S. citizen in New York. This isn't news.
"Also competing for the first time as an U.S. citizen is Sally Kipyego, 32, who won a silver medal for Kenya in the 10,000 meters at the 2012 Olympics and took second place in New York in 2016, when she was one month pregnant. She gave birth to her daughter, Emma, in July 2017.
'She’s a big name internationally and if she’s going to be competing as an American, that definitely adds a whole other layer of competition and makes it extremely challenging coming around to any major championship, specifically an Olympic spot,' Flanagan said. 'She’s definitely a threat.'
Looking ahead, Linden said Kipyego could take one of the three spots on the next U.S. Olympic team.
'I think we all know that the team in 2020 is going to be one of the hardest to make, and she’s one more player in that competition,' she said.