The 49ers will be on hand for the Thursday workouts of West Georgia defenders Darrius Caldwell and Dalvon Stuckey, who are among the players available in this month's supplemental draft.
Clemson offensive tackle Isaiah Battle and North Carolina Central wideout Adrian Wilkins also have declared for the supplemental draft, which will be held July 9.
From a position standpoint, Battle, who is listed as 6-6, 290, might be the most intriguing for the 49ers after they lost starting right tackle Anthony Davis to an unexpected retirement last month.
As of now, Joe Staley is slated to play left tackle and newcomer Erik Pears right tackle. They used a seventh-round pick on Trent Brown, who showed potential during spring practices. He could be tapped as a swing tackle. So could Alex Boone, who will start at one of the guard spots.
Battle, meanwhile, said in a statement that he chose to enter the supplemental draft due to family matters, specifically the birth of his child. However, he also was cited for speeding and marijuana possession last month, according to The Clemson Insider. He served a suspension in 2013 for striking an opponent and last year was briefly suspended for disciplinary reasons.
Battle’s pro-day style workout is July 7 at Clemson; Wilkins’ is July 8 at N.C. Central.
Caldwell, who projects to an outside linebacker in the 49ers' scheme, also is interesting because he has the athleticism and length -- 6-4, 245 -- 49ers general manager Trent Baalke likes at the position. Caldwell also had 69 tackles, 18 1/2 behind the line of scrimmage, and 12 sacks last season.
Still, the 49ers seem to have a full house at outside linebacker. One starter, Ahmad Brooks, reported to the offseason program in good shape after being decidedly overweight last season. Another, Aldon Smith, is entering the final year of his contract and appears to be motivated to recapturing the form he had early in his career.
The team also has veterans Aaron Lynch and Corey Lemonier at the position. The 49ers drafted Eli Harold in the third round and signed rookie Marcus Rush as a free agent.
Any team that uses a draft pick in the supplemental draft forfeits an equal pick in the upcoming May draft. The 49ers are expecting to have 12 picks in next year's May draft.