"Aldon Smith, the 49ers' first-round draft pick and a candidate for Defensive Rookie of the Year, was arrested on suspicion of driving under the influence in Miami Beach early Saturday morning.

According to a Miami-Dade County Corrections and Rehabilitations spokeswoman, Smith was arrested at 4:33 a.m. and was booked into the county jail at 9:18 a.m. He posted a $1,000 cash bond and was released at 12:42 p.m.

A Miami Beach police spokesman was not able to provide any information about the arrest.

Smith, 22, led all rookies during the regular season with 14 sacks, and he added two more in the playoffs. He set a rookie franchise record for sacks in a season and came within a half-sack of Jevon Kearse's NFL record for rookies that was set in 1999.

The No. 7 overall pick in the draft twice was the league's defensive rookie of the month this past season, and he is a candidate for Defensive Rookie of the Year, an award that will be announced next Saturday. Smith is from Missouri and played at the University of Missouri."