US Open champion Coco Gauff and French Open winner Iga Swiatek will miss subsequent month’s Billie Jean King Cup finals.
The finals start in Spain two days after the WTA Finals end in Mexico.
World quantity 4 Jessica Pegula, who like Gauff is taking part in singles and doubles on the WTA Finals, can also be lacking from the US staff.
However Elena Rybakina of Kazakhstan and the Czech duo of Marketa Vondrousova and Karolina Muchova are planning to play each occasions.
Cancun was awarded the WTA Finals in early September – 4 months after Seville was introduced because the host metropolis for the Billie Jean King Cup finals.
Saudi Arabia and the Czech Republic had additionally been within the working to stage the WTA Finals, which function the highest eight singles gamers and doubles groups of the yr.
The occasion will conclude in Cancun on Sunday, 5 November, with the 12-team Billie Jean King Cup finals starting in Seville on Tuesday, 7 November.
Swiatek additionally missed final yr’s Billie Jean King Cup finals in Glasgow, because the 2022 WTA Finals have been scheduled to complete in Texas simply at some point earlier.
“I am disenchanted that tennis’ governing our bodies didn’t come to an settlement on one thing as primary because the calendar of tournaments, giving us solely at some point to journey by way of the globe and altering the time zone,” she stated 12 months in the past.
“This example will not be protected for our well being and will trigger damage.”
Caroline Garcia, Madison Keys and Belinda Bencic – who would be the primary participant for the defending champions Switzerland – are among the many others who can be competing in Seville.