What is Flag Football, the sport in centre of Visa Row for India's players?

Flag football is a sport that is going to be played in the 2028 Los Angeles Olympics. Now, India sent a team to participate in the World Championships in Finland but their visa was denied due to unspecified reasons.

Flag football is a sport that is going to be played in the 2028 Los Angeles Olympics. Now, India sent a team to participate in the World Championships in Finland but their visa was denied due to unspecified reasons.