Tackle Eric Fisher and cornerback David Amerson visited the Detroit Lions today, according to the team web site.

Fisher, who played at Rochester’s Stoney Creek High School and Central Michigan, is expected to be a top five pick in the NFL draft. It’s possible that he will not be available when the Lions draft at No. 5.

The Lions have openings at left tackle and right tackle with the retirement of Jeff Backus and because Gosder Cherilus left in free agency.

 Riley Reiff, who was drafted in first round last year, is expected to start at one of the tackle positions.

 Fisher’s stock has climbed since the Combine.

 ESPN’s Todd McShay released a mock draft today (Thursday) that has Fisher going to the Eagles with the fourth pick. (He has the Lions drafting defensive end Ziggy Ansah.)

 Mel Kiper has Fisher as the second overall pick going to Jacksonville. He also has the Lions drafting Ansah.

  Amerson, who played at North Carolina State, is likely a second-day guy.

 CBSsports.com has Amerson (6-foot-1, 205 pounds) ranked as the sixth best cornerback in the draft and projects that he’ll be drafted in second round.

  Amerson was an All-American in 2011 with 13 interceptions but faded in 2012. He ran an official 4.44 40-yard dash at the Combine.

 In comparison, Dee Milliner, considered the top cornerback in the draft ran a 4.37 at the Combine.

 The Lions look for speed in their cornerbacks where there is an opening for a starter beside Chris Houston.

 Detroit drafted three cornerbacks a year ago — Bill Bentley, Chris Greenwood and Jonte Green — and they are expected to contribute this season.

 The Lions have eight picks in the draft which will run April 25-27.

  (Follow @PaulaPasche on Twitter. Order her new book,  “100 Things Lions Fans Should Know & Do Before They Die’’ here. It’s also available at bookstores.)