Career
O'Brien was drafted by the Lions with the 23rd selection in 2014 rookie draft. He was promoted to the senior list during the week before their round 11, 2014 clash against the Carlton Football Club. He was delisted in October 2015.
O'Brien was drafted by the Lions with the 23rd selection in 2014 rookie draft. He was promoted to the senior list during the week before their round 11, 2014 clash against the Carlton Football Club. He was delisted in October 2015.
