<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjItMTEvMzhlYmQ1YTItYzQ1Zi00ODE2LWI0N2QtMzc0ZWIyM2EyNDNkLmpwZw==.jpg"></p><p>$21,000 is looking tricky as sell orders mount, while buy walls dry up, taking potential support with them.</p>