Muscle Milk/MDK/KTM Factory East Lites Supercross rider Martin Davalos will sit on the sidelines for the St. Louis Supercross after an injury from last weekend's event has worsened.Davalos was on fire last weekend at the New Orleans Supercross turning fast lap times in both practice sessions. However, misfortune struck in his heat race after he crashed near the end of the heat and was landed on by another rider. "The other rider had no where to go and couldn't avoid crashing into me. Unfortunately, he landed on my leg. We thought it was just badly bruised at first but found out later in the week that I have a cracked fibula," commented Davalos.He continued, "I am pretty bummed right now because I was feeling really good the last couple of rounds. I tried to ride yesterday but it was too painful to come back yet. I am hoping for a short recovery but do not know an exact time that I will be sidelined."Check for further updates on Davalos' status on www.ktmusa.com.