Our Face Off series will feature two entrepreneurs leading companies in the same industry, discussing their challenges and opportunities in the sector.

This month's Face Off features Ahmed Khatib, the CEO of MarkaVIP, the Arab world's largest luxury goods flash sales site, and Ronaldo Mouchawar, the CEO of Souq.com, the region's largest online retail site. On November 8th, we discussed challenges in e-commerce in the Middle East and North Africa live over a Google Hangout on Air. In this segment, number 10 of 10, watch the final showdown, and add your questions and opinions in the comments.