Manager Pete Mackanin said Neris' recent struggles are due to a lack of command with his splitter, Jim Salisbury of CSN Philadelphia reports.
Neris allowed three runs on two hits in two-thirds of an inning Wednesday. He has allowed eight runs on 11 hits with a 5:8 K:BB over his last 6.1 innings of work. Mackanin said the Phillies have been looking at video to see if there is a mechanical adjustment needed. Neris may also start using his slider more until he can get command of his split again.