The purpose of the proposed study is to evaluate the effects of administering intravenous tranexamic acid (TXA) to patients undergoing anterior cruciate ligament (ACL) reconstruction with bone-patellar tendon-bone autograft to minimize hemarthrosis within the knee joint and post operative pain. Patients received the standard arthroscopic ACL reconstruction with a BTB autograft and were randomized to either receiving or not receiving two individual doses of TXA intra-operatively or receive. The goal of the study is to determine and evaluate the effect of intra-operative TXA on post-operative hemarthrosis, pain reduction, and opioid consumption.