MLB

Royals' Herrera, Rios expected to miss two weeks with chickenpox

KANSAS CITY, MO - JULY 21: Kelvin Herrera #40 of the Kansas City Royals throws against the Pittsburgh Pirates at Kauffman Stadium on July 21, 2015 in Kansas City, Missouri. (Photo by Ed Zurga/Getty Images) ST. PETERSBURG, FL - AUGUST 28: Alex Rios #15 of the Kansas City Royals bats during a MLB game against the Tampa Bay Rays on August 28, 2015 at Tropicana Field in St. Petersburg, Florida. (Photo by Ronald C. Modra/Sports Imagery/Getty Images)

KANSAS CITY, MO - JULY 21: Kelvin Herrera #40 of the Kansas City Royals throws against the Pittsburgh Pirates at Kauffman Stadium on July 21, 2015 in Kansas City, Missouri. (Photo by Ed Zurga/Getty Images) ST. PETERSBURG, FL - AUGUST 28: Alex Rios #15 of the Kansas City Royals bats during a MLB game against the Tampa Bay Rays on August 28, 2015 at Tropicana Field in St. Petersburg, Florida. (Photo by Ronald C. Modra/Sports Imagery/Getty Images)

KANSAS CITY, Mo. -- Kansas City Royals All-Star pitcher Kelvin Herrera and right fielder Alex Rios have been diagnosed with chickenpox, raising concerns that others on the AL Central-leading team may have been exposed.

Team officials said Tuesday that Herrera and Rios will likely miss a couple of weeks as the season wraps up. Both players were sent home from Tampa Bay after experiencing symptoms over the weekend.

The Royals have reached out to players, coaches and their families to determine whether anyone else has had chickenpox or may be at risk.

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The disease is highly contagious, spread through the air via coughing or sneezing and sometimes by touching. It causes a blister-like rash, fever and tiredness. It can be serious for people with weakened immune systems.