Adding dot to rewrite rule

I want to add a dot (.) to my variable in the last rewrite rule, and I have no idea where to put it in this syntax. Does it go after A-Z?

ErrorDocument 404 /
ErrorDocument 403 /

Options ALL -Indexes

RewriteEngine On
RewriteRule ^([0-9/.]+)$ index.php?Patch_No=$1 [NC,L]
RewriteRule ^([0-9/.]+)&([0-9a-zA-Z_-]+)$ index.php?Patch_No=$1&tab=$2 [NC,L]
RewriteRule ^patches php/patches.php [NC,L]
RewriteRule ^([\s'0-9a-zA-Z_-]+)$ index.php?Champion=$1 [NC,L]