The San Francisco 49ers have agreed to a trade with the Kansas City Chiefs. The 49ers will acquire an undisclosed 2013 draft choice, and a conditional pick in the 2014 NFL Draft, in return for sending QB Alex Smith to the Chiefs. Smith must pass a physical in Kansas City for the trade to be executed.

"We would like to thank Alex for his contributions to the 49ers organization over the past eight years," said 49ers General Manager Trent Baalke. "He is a true professional who represented the 49ers with class on and off the field."

Originally the first overall draft pick in the 2005 NFL Draft by San Francisco, Smith spent eight seasons in the red and gold. During his tenure with the 49ers, he started 75 of the 80 games in which he played, completing 1,290 of 2,177 pass attempts (59.3%) for 14,280 yards and 81 TDs.

In 2012, Smith was 6-2-1 as a starter, completing 153 of 218 pass attempts (70.2%) for 1,737 yards with 13 TDs and 5 INTs, and a QB rating of 104.1. In 2011, Smith led the 49ers to their first NFC West title and postseason berth since 2002. He threw for a career-high 3,144 yards on 273 of 445 pass attempts with 17 TDs, 5 INTs and a 90.7 QB rating.