SANTA CLARA, CA. -- For the fourth time in as many drafts as the San Francisco 49ers coach, Jim Harbaugh didn't not draft any Stanford players.

However, it appears Harbaugh did land a Stanford player, after all. Stanford standout inside linebacker Shayne Skov tweeted Saturday that he is joining the 49ers, after unexpectedly falling out of the draft. The team has not confirmed any undrafted free-agent signings.

Many scouts thought Skov could go as high as the third-round. He is an instinctive tough playmaker. The 49ers added Wisconsin middle linebacker Chris Borland in the third round. Skov may be hard pressed to make the team, but he is familiar with Harbaugh and several assistants, including defensive coordinator Vic Fangio. I could see Skov being a candidate for the practice squad.

In other 49ers' draft notes:

Both Harbaugh and general manager Trent Baalke are excited about the depth at receiver after trading for Steve Johnson and then drafting Bruce Ellington in the fourth round. Johnson is expected to be the No. 3 receiver. Ellington and second-year receiver, the promising Quinton Patton, round out a strong receiving crew. Baalke said it could the deepest 49ers' receiving group in some time.

Ellington was also a point guard on South Carolina's basketball team early in his college career. Indiana coach Tom Crean, Harbaugh's brother-in-law, texted him and said the 49ers have the best basketball team in the NFL. Baalke said the 49ers did watch some basketball film work of Ellington.

Harbaugh expressed excitement about Southern Illinois quarterback Kory Faulkner. He signed as an undrafted free agent. Harbaugh met with him on campus recently.

Speaking about Borland, Harbaugh said his hitting style is like a "bowling ball hitting pins."