Twenty-time TT winner John McGuinness is undecided as to whether he will ride the six-lap Senior race on Friday.

McGuinness injured his hand two months before the TT and it's continuing to give him problems.

He has already confirmed to Manx Radio TT today that he will not take part in the Supersport 2 race.

He lined up for the Zero electric bike this morning but will wait and see if he rides the big bike on Friday:

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