Insta-tweet reaction: MLS, US Soccer legend Landon Donovan announces retirement | SIDELINE

Major League Soccer and US Soccer legend Landon Donovan announced on Thursday that he will retire from soccer at the completion of the LA Galaxy's 2014 MLS season.

The news came as somewhat of a shock for many fans across the league — and the world. 

This is how Twitter reacted in the moments following the news: