A weakside linebacker, often abbreviated as WLB, is a defensive player in American football who lines up on the side of the field opposite the tight end. This position is crucial for defending against both the run and the pass. Weakside linebackers are typically faster and more agile than their counterparts, allowing them to cover receivers and make plays in open space. In a standard defensive formation, the weakside linebacker must read the offense's movements and react quickly. They often play a key role in blitzing the quarterback and dropping back into coverage. Their versatility makes them essential for a balanced defensive strategy, contributing to the overall effectiveness of the defense.