Luke Snyder is competing with a bruised right thigh.

Billy Robinson is competing with a left shoulder sprain (riding arm), sustained in a horse-riding accident.

Markus Marilulch is competing with a left hip adductor (groin) strain sustained in Billings, Mont.

Valdiron de Oliveira is out of competition in Billings, Mont., because of a concussion and facial fractures sustained at the Mohegan Sun Invitational. He is probable for Boise, Idaho.

Ryan Dirteater is out of competition in Billings, Mont., because of a concussion sustained at the Mohegan Sun Invitational. He is probable for Boise, Idaho.

Guilherme Marchi is competing with a sprained right (riding hand) elbow sustained in Des Moines, Iowa.

Caleb Sanderson is competing with an aggravation of an old left shoulder (free arm) injury.

Austin Meier is competing with a left wrist (riding hand) sprain sustained in Detroit.

Aaron Roy is competing with a torn meniscal cartilage in his right knee.

Matt Bohon is competing with a sprained right elbow (riding hand) sustained in Kansas City, Mo.

Kody Lostroh returns to competition in Billings, Mont., after being out with a right groin strain sustained in Kansas City, Mo.

Mike Lee returns to competititon in Billings, Mont., after being out with a knee injury sustained in Oklahoma City.

Robson Palermo returns to competition in Billings, Mont., after being out with a left shoulder strain sustained at the Mohegan Sun Invitational.

Valdiron de Oliveira sustained a fractured left orbital floor and a concussion during Round 3 at the Mohegan Sun Invitational. The fracture will require surgery one-to-three weeks after swelling has subsided. After surgery, he will be out for two-to-three weeks. He is undergoing testing on Thursday morning to determine his fitness to compete in Billings, Mont.

Ty Pozzobon is out of competition in Billings, Mont., because of a recurrent right knee sprain (MCL) sustained at the Mohegan Sun Invitational. He is probable for Pueblo, Colo.

Ryan Dirteater is out with a concussion sustained in Round 2 at the Mohegan Sun Invitational. He is questionable for Billings, Mont.

Valdiron de Oliveira was admitted to the hospital Sunday for overnight observation. It is anticipated that he will be discharged Monday. He will require surgery this week to fix a fracture of his left orbital floor (eye socket). He will not compete in Billings, Mont.

Robson Palermo is out of competition because of a left shoulder injury sustained during the Round 1 at the Mohegan Sun Invitational. He is questionable for Billings, Mont.

Valdiron de Oliveira sustained a head injury when his Round 3 bull stepped on his back at the Mohegan Sun Invitational.

Ryan Dirteater sustained a concussion when his head hit the ground as he was thrown from his Round 2 bull in Uncasville, Conn. He is questionable for Sunday.

Rubens Barbosa is out of competition with a neck injury sustained during Round 1 in Uncasville, Conn.

Robson Palermo did not compete in Round 2 at the Mohegan Sun Invitational, because of a left shoulder (riding arm) sprain sustained in Round 1. He is doubtful for Sunday.

Luke Snyder is out with a bruised right knee and right thigh sustained in the chutes during Round 2 at the Mohegan Sun Invitational. He is probable for Billings, Mont.

Caleb Sanderson is out of competition with a bruised left knee sustained when he was struck by the bull's horn in Round 2 in Uncasville, Conn. He is questionable for Billings, Mont.

Marco Eguche is competing with a strained left thumb (free hand), sustained when he was thrown from his bull during the 15/15 Bucking Battle in Uncasville, Conn.

Kody Lostroh is out with a groin strain sustained in Kansas City, Mo.

Valdiron de Oliveira is competing with a broken right foot sustained in Des Moines, Iowa.

Guilherme Marchi is competing with a sprained right (riding hand) elbow sustained in Des Moines, Iowa.

Kasey Hayes is competing with a strained right hip adductor (groin) sustained in Indianapolis.

Chase Outlaw is competing with a sprained left (riding) hand sustained in the second round in Des Moines, Iowa.

J.B Mauney returns to competition at the Mohegan Sun Invitational, after having surgery for a broken bone in his left (riding) hand, sustained in Kansas City, Mo.

Justin Koon returns to competition at the Mohegan Sun Invitational, after being out with an aggravation of an old neck sprain.

Fabiano Vieira returns to competition at the Mohegan Sun Invitational after missing the championship round in Des Moines, Iowa, because of a left groin strain.

Rubens Barbosa sprained his neck when he landed on his head in the first round of the Mohegan Sun Invitational. He is doubtful for a return to competition this weekend.

Robson Palermo sprained his left shoulder when he hung up to his bull in the first round of the Mohegan Sun Invitational. He did not compete in the 15/15 Bucking Battle, and is questionable for Saturday.

Fabiano Vieira did not compete in the championship round in Des Moines, Iowa, because of his left groin strain. He is questionable for Uncasville, Conn.

Kody Lostroh is out of competition for Round 3 in Des Moines, because of an aggravation of a groin strain.

Valdiron de Oliveira broke the third metatarsal of his right foot when it got twisted in a slat in the chute, as he was getting ready for his Round 3 ride in Des Moines, Iowa. He is probable for Uncasville, Conn.

Chase Outlaw is competing with a sprained left (riding) hand sustained in the second round in Des Moines, Iowa.

Guilherme Marchi sprained his right elbow (riding hand) when the elbow hyperextended during his first-round ride in Des Moines, Iowa. He is probable for Sunday.

Shane Proctor returns to competition in Des Moines, Iowa, after being out with a right shoulder injury.

Billy Robinson returns to competition in Des Moines, Iowa, after missing the championship round in Indianapolis with back spasms and a sore riding arm elbow.

Ryan Dirteater returns to competition in Des Moines, Iowa, after being out with a sprained left (riding) hand sustained in Kansas City, Mo.

J.B Mauney is out with a broken bone (ring finger metacarpal) in his left (riding) hand, sustained in Kansas City, Mo.

Justin Koon is out of competition in Des Moines, Iowa, due to aggravation of an old neck sprain.

Skeeter Kingsolver is out of competition in Des Moines, Iowa, due to illness.

Kody Lostroh is competing with a right groin strain sustained in Kansas City, Mo.

Kasey Hayes is competing with a strained right hip adductor (groin) sustained in Indianapolis.

Fabiano Vieira is competing with a left adductor (groin) strain sustained in the championship round in Indianapolis. He is also competing with an aggravation of an old left shoulder (free arm) injury.

Matt Bohon is competing with a sprained right elbow (riding hand) sustained in Kansas City, Mo.

Brendon Clark is competing with a sprained lateral collateral ligament of his right knee.