Street fighting men like Mick Jagger may be interested in a free Ultra Street Fighter IV weekend that's now underway on Steam, along with a sale on the fighting sequel. Here's word from Steam News:

Play Ultra Street Fighter IV for FREE starting now through Sunday at 1PM Pacific Time. You can also pick up the game and DLC at 66% off the regular price!*

The world’s greatest fighting game evolves to a whole new level with Ultra Street Fighter IV. Continuing the tradition of excellence the series is known for, five new characters and six new stages have been added for even more fighting mayhem, with rebalanced gameplay and original modes topping off this ultimate offering.

And be sure to check out Street Fighter V, available for prepurchase now!

*Offer ends Monday at 10AM Pacific Time