Asked if he could elaborate any further on the McGlinchey situation, Merrick said he was unable to.
"I've got no comment to make. We are just treating everyone the same and preparing a team to play two wonderful games against EPL sides and looking forward to that."
The Phoenix host English club sides West Ham and Newcastle United in New Zealand next week.
Meanwhile, Phoenix midfielder Albert Riera hopes to swap shirts with Italian great Andrea Pirlo after being named in the A-League All Stars team to meet Juventus in Sydney next month.
"He's one of my heroes," Riera said.
A year ago Riera was playing for Auckland City but was spotted by Merrick and given a chance at the Phoenix and the Spaniard was one of the club's most influential players last season before a serious groin injury disrupted his campaign.
Riera has recovered well from surgery and expected to be back at full fitness in the next few weeks.