The 189km first stage was won by Mark Cavendish (Dimension Data) who avoided the crash involving Ewan, Marcel Kittel (Quick-Step Floors) and Owain Doull (Sky).
All riders involved managed to limp to the finish but Ewan complained of a sore shoulder and was taken to the local hospital for precautionary checks.
"The boys were in a good position and we were set for a great final,” Orica Scott sports director Dave McPartland said after the stage.
“It looks like Caleb took a good hit to his shoulder. It doesn’t appear to be too bad but he will go to the hospital to double-check things.”
Once the checks were completed the team said Ewan would likely remain in the four-day race and would take to the road for the 153km second stage, where the sprinters were again set to take centre stage.
"Thankfully Caleb Ewan has been cleared of any fractures and will try to start tomorrow's Stage 2 Abu Dhabi Tour pending soreness."