PG: Pirates' deal with Pedro Alvarez in jeopardy

Is this just another ploy by Boras who may be upset with others getting higher bonuses or is there some justification for this? Either way, it is not good.

http://post-gazette.com/pg/08240/907355-100.stm

The Pirates' deal with first-round draft pick Pedro Alvarez appeared
to be in jeopardy today, with the Pirates issuing a statement saying
that Alvarez's agent, Scott Boras, has said Alvarez will not sign the
contract agreed to on Aug. 15.

As a result, Pirates president Frank Coonelly said in the statement
that the team had asked the commissioner's office to place Alvarez on
MLB's restricted list.

In addition, the MLB Players Assocation today will file a grievance
against the Pirates contending that Alvarez agreed to his contract
after the Aug. 15 midnight deadline.