France back-rower Sekou Macalou scored twice as Stade Francais returned to the summit of the French Top 14 with Saturday's 25-12 win over Pau . The Parisians had dropped down to second earlier in day after Toulouse hammered Castres 33-6 . Pau are in the sixth and final play-off place after sending a second team, shorn of ex-New Zealand lock Sam Whitelock, to the capital city .