In one day, the Mets went from hopeful to wary about whether Michael Cuddyer can avoid a trip to the disabled list.

Terry Collins said yesterday that Cuddyer, who had a cortisone shot on Wednesday to aid his ailing left knee, could end up going on the DL as early as Friday. "I talked to Mike," Collins said. "I didn't think he was going to feel that good today. He doesn't . . . After three days, if that shot hasn't taken effect, we need to look at it again."

Cuddyer was unavailable the last two games.

"If it gets to the point where the doctor said the medicine should have taken effect and it's still bad, then eventually you'd be a little more concerned," Cuddyer said. "But right now I've got to let that medicine do its job and see how it feels after that."

One possible call-up candidate is Kirk Nieuwenhuis, who went into Thursday night batting .319 with six home runs for Triple-A Las Vegas.

Mets ink two shortstops

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The Mets signed a pair of 16-year-old shortstops to bonuses totaling $2.7 million on the first day of the international signing period. Gregory Guerrero, the nephew of former major-leaguer Vladimir Guerrero, signed for a $1.5-million bonus, according to various reports. The native of the Dominican Republic is listed as MLB.com's No. 17 international prospect.

The Mets also signed the 15th-ranked prospect, Venezuelan Andres Gimenez, for $1.2 million.

For perspective sake, the Mets signed a 16-year-old shortstop named Wilmer Flores for $750,000 in 2007. Flores first reached the majors in 2014.

Harvey's ERA drops

Thanks to a scoring change, Matt Harvey's ERA has gone from 3.08 to 2.99. An error was charged to Curtis Granderson on what originally was scored a double on Saturday. That wiped out an earned run for Harvey.

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Abreu: 80-game PED ban

Mets minor-league catcher Adrian Abreu has been suspended for 80 games for testing positive for the performance-enhancing drug Stanozolol, the commissioner's office announced. Abreu is on the Savannah (Class A) roster.