Clemson CB Mackensie Alexander visiting 49ers today

Clemson CB Mackensie Alexander is visiting with the San Francisco 49ers today, per Ian Rapoport. Alexander's visit was already known, but his visit date was not.

The 5-foot-10 and 190-pound Alexander measured in with a 31 3/8-inch arm length and 9 1/8-inch hands at the NFL Scouting Combine.

At his pro day, he recorded a 4.47-second 40-time, 37 1/2-inch vertical, and a broad jump of 10 feet, 1 inch.

RELATED 49ers Pre-Draft Visit/Meeting Tracker

Llance Zierlein of NFL Media, who compared Alexander to Desmond Trufant, had this to say in his scouting report:

Alexander is a difficult evaluation because there are times on tape that he looks vulnerable to quickness off the line of scrimmage and he doesn't have the prototypical size of a top­-end NFL cornerback. However, he was consistently sticky in man coverage and played with the instincts and confidence needed from a true cover corner. Alexander's confidence may border on cockiness at times, but that also seems to feed his competitive fire. Alexander might struggle early on, but should settle in to become a quality starter by his second year.

After redshirting at Clemson in 2013, Alexander started all 13 games as a redshirt freshman in 2014 and had 22 tackles. He returned as a starter in 2015 when he had 23 tackles, two for a loss, and five passes defended.