Jacques Burger and Petrus Du Plessis join the centurion club as they start in Saracens' semi-final against Northampton.
Tom Wood says Northampton's recent run of success against Saracens will count for nothing at the weekend.
Leicester reached the Aviva Premiership play-offs with a 22-14 win over rivals Northampton at Welford Road.
There is still plenty to play for in the final round of the regular Aviva Premiership season on Saturday.
Bath and England centre Jonathan Joseph received double recognition at the annual Rugby Players' Association awards.
Full-back Ahsee Tuala has signed a new deal with Northampton after impressing in the early stages of his Franklin's Gardens career.
Wales' George North has down played fears four successive head injuries will stop him playing at the World Cup.
Wales coach Warren Gatland fears George North's rugby career could be in jeopardy if he suffers further concussions.
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