His value as a second-line centre has gone up to a possible $3 million annual cap hit on a new deal, which has prompted speculation on his future in Toronto.
Meanwhile, MacArthur has been somewhat criticized for his recent lack of offense, after recording 14 goals and 10 assists for 24 points in 42 games with the Leafs this season.
Leafs GM Brian Burke does not buy into the argument that Grabovski and MacArthur aren't contributing enough offense as he believes that need is overstated.
However, the Leafs have an estimated $52.9 million committed to 17 players for the 2012-13 season and could look to unload a few contracts.
The Leafs currently sit in ninth place of the Eastern Conference with a 25-19-5 record, right under the New Jersey Devils with 55 points in a race for a playoff spot.
More Trade Deadline Info
List of Trades
| No-Trade/No-Movement Clauses
| Top 25 Available Players
| Team-by-Team Cap Info