Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_75103 ( "Cap Number" real, "Date" text, "Position" text, "Shirt Number" real, "Home or Away" text, "Venue" text, "Result" text, "Score" text )

### Question ###
What's the largest shirt number when the cap number is 5?

### Accurate SQL ###

SELECT MAX("Shirt Number") FROM table_75103 WHERE "Cap Number" = '5'