The Minnesota Timberwolves were engaged in serious Kevin Love trade talks with no teams other than the Cleveland Cavaliers on Wednesday, adding to the growing belief around the NBA that Love teaming up with LeBron James is inevitable, according to sources briefed on the situation.

After ESPN.com reported last week that the Cavaliers remain the front-runners to acquire Love in a trade co-headlined by No. 1 overall draft pick Andrew Wiggins, sources this week have described the Cavs as the only team in contention for Love. Sources say the Chicago Bulls have become increasingly pessimistic about their chances of trumping Cleveland's offer, while the Golden State Warriors remained unwilling to bend on their longstanding refusal to surrender Klay Thompson in a deal for Love.

Wiggins is not eligible to be dealt until Aug. 23 after signing his rookie contract last week, but numerous league insiders -- some of whom are gathered in Las Vegas for this week's Team USA training camp -- have begun to describe a Love-to-Cleveland trade as a "when" transaction as opposed to an "if."

With three weeks to go until Wiggins is eligible to be swapped for Love, one source said Wednesday that James himself already is "looking forward" to the prospect of welcoming the All-Star power forward as his newest teammate.

Yet league officials are adamant that there can be no acknowledgement of a trade, from either the Wolves or the Cavaliers, until the 30 days pass from Wiggins' signing. Sources say that, furthermore, the teams continue to discuss potential trade constructions, such as bringing in a third team or adding players beyond the widely reported principals.