5. Marouane Chamakh (Crystal Palace)
He signed for Crystal Palace at the start of the season amidst hopes that he would be a crucial figure for the Eagles in their survival bid after a less than impressive term at Arsenal. However, Chamakh has failed to live up to expectations and managed to score only 4 times in 23 appearances. Little wonder that Palace have struggled to score goals, and they find themselves just outside the relegation zone with the fewest goals scored. He also has won only 46% of headed duels for a player who had a reputation for being good in the air.
(Stats via Squawka)