The Broncos’ tour of tackle prospects continues.

The team hosted former Wisconsin tackle and projected first-round pick Ryan Ramczyk on a visit Monday, according to an NFL source. Later in the week they are scheduled to host former Utah tackle Garett Bolles.

Ramczyk and Bolles are viewed by many draft experts as the top two tackles in the class of 2017. Both have accolades to match but only one year of Division I experience.

The two met with the Broncos at the NFL scouting combine earlier this year and could be real options for them in the first round. Denver signed guard Ron Leary and tackle Menelik Watson in free agency, but the left tackle job left vacant by Russell Okung has yet to be filled.

“There was a possibility that we weren’t going to have it filled (during free agency),” Broncos head coach Vance Joseph said at the league meetings. “You talk through every issue that’s possible with free agency and with your roster. So I’m not surprised that we’re sitting here without a known left tackle.”

Ramczyk (6-foot-6, 310 pounds) has deeper ties to the Broncos after playing for Paul Chryst at the University of Wisconsin. Paul, who first tried to recruit Ramczyk to Pittsburgh when he was the head coach there, is the brother of new Broncos tight ends coach Geep Chryst. Related Articles April 8, 2017 2017 NFL draft offensive line rankings, breakdown and sleepers

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Ramcyzk turned down a scholarship offer from Pitt and instead attended technical college not far from his hometown of Stevens Point, Wis. He transferred to Wisconsin-Stevens Point in 2013 to pick up two all-Wisconsin Intercollegiate Athletic Conference selections before moving on to Wisconsin-Madison. Ramczyk was forced to sit out the 2015 season, per NCAA transfer rules, but quickly moved into the starting role at left tackle the following year. The redshirt junior earned first-team all-Big Ten honors last season.

Among the biggest questions with Ramczyk, however, is his health. Following Wisconsin’s bowl game against Western Michigan, he underwent hip surgery.

At the combine, he said the that injury requires five months of recovery and that he expects to be cleared in time for training camp in July, if not sooner.