Senzel ramps up activity in vertigo rehab

Top Prospects: Senzel, CIN SAN FRANCISCO -- Reds top prospect Nick Senzel's treatment for vertigo has gone well enough lately that the infielder has able to resume baseball activity. Senzel is headed to the team's player development complex in Goodyear, Ariz.

"There's been improvement, enough to go to Arizona and keep progressing," Reds president of baseball operations Dick Williams said. "He'll do a little more baseball activity -- ground balls, running and eventually get into some games."

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Senzel, who is ranked as the organization's No. 1 prospect by MLBPipeline and No. 7 overall, was placed on Triple-A Louisville's 7-day disabled list on May 9. The 22-year-old hasn't…