(Portland, OR)  --  One man is facing charges after allegedly stabbing another man on a MAX train.  Police arrested 30-year-old James Luckey yesterday for the incident aboard a MAX train at the Denver Avenue Transit Station in the Kenton neighborhood.  Police say Luckey and a 19-year-old man were arguing when Luckey pulled out a knife and stabbed the man.  The victim is expected to survive.  The incident happened one day before trial starts for MAX murder suspect Jeremy Christian, who is accused of stabbing three people on a train earlier this year.