Arizona Cardinals coach Bruce Arians was taken to the hospital Sunday night with chest pains and remained hospitalized Monday.
The team announced in a statement the results conducted to investigate the cause of chest pains "have come back favorably."
"After returning home from Minnesota, Cardinals head coach Bruce Arians was experiencing discomfort and not feeling well during the night," the team's full statement read. "His wife took him to a local hospital to be evaluated. All tests conducted so far have come back favorably. He remains in the hospital for continued evaluation. Further updates will be provided as they are available."
The Cardinals lost to the Minnesota Vikings 30-24 on Sunday to drop their record to 4-5-1.
The 64-year-old Arians was hospitalized in August before a Cardinals preseason game against the Chargers in San Diego -- dealing with symptoms associated with diverticulitis, a condition which affects the digestive tract.
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While with the Indianapolis Colts, Arians was hospitalized before a wild-card game against the Baltimore Ravens in 2013 because of an ear infection. He also underwent surgery for prostate cancer in 2007 while with the Pittsburgh Steelers.
Cardinals safety Tyrann Mathieu said he spoke to Arians.
"My guy BA just text me, he will be ok. #BuiltToLast," Mathieu wrote Monday on Twitter.
The Cardinals canceled Arians' regular day-after game press conference that was scheduled for 2:15 p.m. ET Monday.
Cardinals wide receiver Larry Fitzgerald said he talked to Arians, telling reporters "he's resting comfortably."
"I don't have any concern about him being able to go forward," Fitzgerald said of Arians' future.
The Cardinals travel later this week to Atlanta to face the Falcons on Sunday.