Assertion: baseball glove's pocket | /r/CapableOf | extend fielder
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text: After padding, the next big innovation came in 1920 when St. Louis Cardinals pitcher Bill Doak came up with a design to replace the leather webbing used in some gloves with a system of straps between the first finger and thumb, creating a larger, deeper pocket that would help relieve some of the impact on the players palms and fingers while also extending a fielder’s reach.