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Yes, a substitute can stand as a wicket keeper during the match.
Every cricket match can have only a maximum number of outs or wickets. If it is a 20-20 or One day international there can be a maximum of 20 outs in a match. In case of a test match there can be a maximum of 40 outs in one match.
Virendra Sehwag scores maximum number of runs in a single day in test match.
There isn't a maximum number of aces that a tennis player can make in a single tennis match. For example, Wimbledon has no tie-breaker in the fifth set, so the fifth set is limitless, so there is no maximum number of aces.
In a test match a bteam can have only two innings.
muttiah murali dharan
One per match.
Mcgrath took 7 wickets in a match