UPDATE: (11:00 a.m. Saturday) -- The 49ers selected Marcus Lattimore with their second fourth round pick, No. 131 overall.
Three picks earlier, they drafted Second-Team All-American wide receiver Quinton Patton out of Louisiana Tech.
SANTA CLARA -- The 49ers do not have a need at running back for the upcoming season. And that places them in a good position to make an investment for 2014 and beyond.
South Carolina running back Marcus Lattimore, who sustained a devastating knee injury last season, is an option for the 49ers on the third and final day of the NFL draft. With Frank Gore, Kendall Hunter, LaMichael James, Anthony Dixon and Jewel Hampton already on the roster, the 49ers would be under no rush to get Lattimore on the field. Lattimore is a no-nonsense runner who seems to fit the style preferred by 49ers running backs coach Tom Rathman. Lattimore should be at full strength for 2014, when the 49ers might consider adding a running back as more of a priority.
This is also a day in which the 49ers can select a quarterback to compete for a spot on the roster. Matt Scott (Arizona) remains on the board. Collin Klein (Kansas State) and MarQueis Gray (Minnesota) are other athletic quarterbacks who could be late-round fits. Sean Renfree (Duke), Landry Jones (Oklahoma) and Jordan Rodgers (Vanderbilt) are also options, as the 49ers will need to add a fourth quarterback to their 90-man roster.
Every draft pick the 49ers have used thus far has been via a trade. That will change Saturday, as the 49ers are required to make selections with their three compensatory picks. The 49ers begin Saturday with seven picks. Here are some other possibilities:
--The 49ers are looking for an offensive tackle who can serve as a backup on either side. David Quessenberry (San Jose State), Reid Fragel (Ohio State), Oday Aboushi (Virginia) and David Bakhtiari (Colorado) fit the profile. The 49ers and New England Patriots have shown the most interest in 6-foot-8 Luke Marquardt (Azusa Pacific), who is coming off foot surgery.
--The tall and short of it at wide receiver: Tyrone Goard (Eastern Kentucky) is 6 foot 3 3/4, and runs a 4.5 in the 40. He's bit faster than 5 foot 7 slot receiver Ace Sanders (South Carolina), who is accomplished in the return game.
--Plenty of options among defensive backs remain in play, including safeties Phillip Thomas (Fresno State) and Duke Williams (Nevada). Tall cornerback Aaron Hester (UCLA) is intriguing, too, at 6 foot 1 1/2.
--The 49ers could use another backup inside linebacker who excels at special teams. Nick Clancy (Boston College) could be on the team's radar.
--Looking for a late-round flier? British Olympian Lawrence Okoye impressed NFL scouts with his raw physical ability as a possible defensive lineman. The 49ers have done all the homework and could consider him.
49ERS 2013 DRAFT PICKS
1. First round (No. 18 overall): Safety Eric Reid, LSU
2. Second round (No. 40 overall): Defensive end Cornellius "Tank" Carradine, Florida State
3. Second round (No. 55 overall): Tight end Vance McDonald, Rice
4. Third round (No. 88 overall): Outside linebacker Corey Lemonier, Auburn
5. Fourth round (No. 128 overall): Own pick
6. Fourth round (No. 131 overall): Compensatory
7. Fifth round (No. 157 overall): From Indianapolis
8. Sixth round (No. 180 overall): From Miami
9. Seventh round (No. 237 overall): Own pick
10. Seventh round (No. 246 overall): Compensatory
11. Seventh round (No. 252 overall): Compensatory
NOTE: Compensatory picks cannot be traded.
49ERS 2014 DRAFT PICKS
1. First round: Own pick
2. Second round: Own pick
3. Third round: Own pick
4. Third round: Tennessee pick in 2013 trade-back
5. Third round: Kansas City pick in Alex Smith trade*
6. Fourth round: Own pick
7. Fifth round: Own pick
8. Sixth round: Own pick
9. Seventh round: Own pick
10. Seventh round: Carolina pick in 2012 trade for Colin Jones
*-Conditional pick that could elevate to second-round selection based on Smith/Chiefs performance.