The head of UK anti-doping and the doctor alleged to have received a mystery package intended for Bradley Wiggins at a race in 2011 will answer questions from the Culture, Media and Sport (CMS) select committee next month.
Dr Richard Freeman -- who works for British Cycling and was formerly employed by Team Sky -- administered the contents of the package to Wiggins at the end of the 2011 Dauphine de Libere, a Tour de France warm-up race, former technical director Shane Sutton has previously told MPs.
The government department confirmed on Monday that Freeman had been called to answer questions regarding the package on Feb. 22.
Team principal Dave Brailsford told an earlier CMS select committee hearing on Dec. 19 that Freeman had told him the package had contained the decongestant Fluimucil, a drug which was available cheaply over the counter in France where the race was taking place.
UK Anti-Doping (UKAD) chief executive Nicole Sapstead -- whose organisation is also investigating the Wiggins package -- will also answer questions at the Feb. 22 hearing.
So too will former British Cycling coach Simon Cope, who transported the package from the UK to France.
The package has been the subject of a UKAD investigation into alleged ''wrongdoing'' ever since the story was reported by the Daily Mail in October.
Team Sky and Wiggins have denied any wrongdoing.
Wiggins was given a medical exemption to use triamcinolone, a powerful corticosteroid, before the Tour de France races of 2011, 2012 and 2013.