Vlookup and uncapitalised/capitalised issue

I use the following vlookup to show whether a team name is within a set range:

Command	CST1		CST2		CST3	
Team	EU1	√	EU7	√	FR6	√
	EU3	√	EU9	√	FR7	√
	EU4	√	EU10	X	FR8	√
	RA1	√	EU11	√	FR9	√
	RA2	√	EU12	X	FR10	√
	RA3	√	EU13	√	FR11	√
	DN1	√	EU14	X

The code to produce the above (where f8 = cell value to lookup in my sheet f8 = EU1 )

=IF(ISNA(VLOOKUP(F8,sectionnames,1,FALSE)),"X","√")

The range the vlookup looks within

sectionnames range:
RA3

RA2

RA1

FR9

FR8

FR7

FR6

etc..

This works fine unless someone adds a team name uncapitalised as FR9 below:

RA3

RA2

RA1

fr9

FR8

FR7

FR6

How can i get around this problem? Can i make the vlookup look for uncapitalised versions of the team name? or create a macro that capitalises all values within a column?

Thanks for any help