Coach Blokhin takes his national side to Italy on 7 October before facing Scotland in Kiev four days later.
And Bal said: "One of the problems is the psychological mood of players whose clubs have had bad results.
"We need to start with a psychological rehabilitiation and restoring the form of players presently in a rut."
Dynamo Kiev suffered a 5-1 hammering by Real Madrid in midweek, while Shakhtar Donetsk were held at home by Olympiakos.
That followed opening Champions League defeats for both clubs.
Bal was talking as Blokhin named a 23-man squad for Euro 2008 Group B double header.
Kiev's Serhiy Rebrov and fellow midfielder Serhiy Tkachenko, of Shakhtar, are out injured.
Arsenal Kiev defender Olexander Romanchuk has received his first call-up.
Source: BBC Sport