Red Sox's Kenley Jansen uses 'invisible' 96 mph cutter to K Mike

Red Sox closer Kenley Jansen knows he must change now that MLB's rules have as well - The Athletic

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Kenley Jansen joins MLB's elite 400-save club, Red Sox teammates gift closer with custom bass guitar

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Kenley Jansen's cutter velocity higher in 2023

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Kenley Jansen joins MLB's elite 400-save club, Red Sox teammates gift closer with custom bass guitar

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Red Sox's Kenley Jansen uses 'invisible' 96 mph cutter to K Mike Trout, Shohei Ohtani

Kenley Jansen's Velocity is WAY UP

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