So, Rugby Players, being A-type personalities, usually own their own business.
Many choose either General Contracting, or get into the trades, like Wells Electrical, or AM Rocca Inc.
Contractors must be aware of the “Additional Insurance Clause” on any policy, either their own, or their subs!
Further, if you sub out anything, you must be fully versed in this complicated part of General Liability insurance. The linked article has most of it, but ultimately, you’ll need to maul through your policy, and your sub-contractors policy, to know where you are on the pitch.