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The introduction of spin bowlers has brought a new level of intrigue into these rankings, and has brought about a great deal of change in the top 20 in particular.
From November, Shane Watson, Ravi Rampaul, Mitchell Starc, Ishant Sharma, Ryan Harris, Zaheer Khan and the recently-retired Jacques Kallis have all dropped out of the top 20.
Tim Bresnan, Umar Gul, Nuwan Kulasekara and James Anderson also found themselves lower down in the rankings but remained in the top 20, although they may see their places under threat in the coming months.
Above them, Tim Southee, Stuart Broad, Steven Finn and Morne Morkel also all dropped down places, a reflection of spin bowlers being added into the equation.
It’s not all bad news for the seamers though, with Kemar Roach and Dale Steyn both holding their positions in the top 20.
Most notably, Junaid Khan, Darren Sammy and Mitchell Johnson all rise in the rankings as a reward for their good form in recent series.
Vernon Philander is the only seamer to enter the top 20 having been outside it in November, and with his continued rise in international cricket is sure to improve his position.
However, the introduction of six spin bowlers has definitely made things more interesting, especially in the upper sections as we see Saeed Ajmal and Ravi Ashwin make a big impact.