Silver traded lower last week and cleared $22.593, Dec 29 low. The move lower highlights the fact that the metal has failed to remain above the 50-day EMA and bearish price action suggests scope for a deeper short-term sell-off. The focus is on $21.918, Dec 16 low. A break would expose $21.427/423, the Dec 15 and Sep 29 lows. Key resistance is at $23.436, Dec 28 high where a break is required to alter the picture.