Hearts manager Csaba Laszlo has confirmed Andrew Driver and Marius Zaliukas will have specialist treatment for their respective injuries.
Driver, who missed the start of the season with a foot problem, has been troubled by a knee injury of late.
Zaliukas has been hampered by an ankle knock and Laszlo is keen to help the pair overcome their injuries.
The duo both missed Hearts' 2-1 weekend defeat to St Johnstone, a result that left the club ninth in the SPL table.
"Driver had no pre-season and is having a problem with his knee all the time," Laszlo told the Edinburgh Evening News.
"He is going to London today to see a specialist and so too is Zaliukas to see about the problem with his ankle."