One of the biggest reasons Brett Favre decided to return to the Minnesota Vikings this year was his familiarity with an offense that he enjoyed being around so much in 2009.

But his two favorite targets -- Sidney Rice and Percy Harvin -- have struggled with ailments throughout the preseason. Rice (hip) likely will miss the first half of the season while Harvin (migraines) has hardly practiced.

Bernard Berrian (55 catches) and Greg Lewis (eight) are the only healthy receivers on this year's roster who caught a pass from Favre in 2009.

The Vikings scrambled to add depth to a receiving corps short on experience, signing veteran free agent Javon Walker on Tuesday and trading with the Dolphins for slot receiver Greg Camarillo on Wednesday.

Walker caught passes from Favre for four years in Green Bay, but he has just 41 receptions in the last three years combined in Denver and Oakland.

Camarillo has 105 receptions for 1,165 yards and two TDs over the last two years in Miami.