DENVER (AP) — The Colorado Rockies have placed reliever John Axford on the family medical emergency list so he can tend to his young son, who was bitten by a rattlesnake last month in Arizona.

Axford said Sunday that his son recently had surgery on his right foot to remove necrotic tissue and will be flown to Denver for more treatment. He says the toes of 2-year-old Jameson “look fine,” but doctors are trying to improve mobility.

His son was bitten twice in the yard of the house his family rented in Scottsdale for spring training. Axford will be out for 3-7 days.

To take Axford’s spot, the Rockies purchased the contract of righty Scott Oberg from Triple-A Albuquerque. They also transferred infielder Charlie Culberson (back) to the 60-day disabled list.